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| author | Trupti Kini | 2017-03-07 09:55:18 +0600 |
|---|---|---|
| committer | Trupti Kini | 2017-03-07 09:55:18 +0600 |
| commit | 856d4f871db9401d568629b88509a8aaf4c20626 (patch) | |
| tree | 5dc225deca939bf8629e233e6433a2f9b5d17ae6 /Engineering_Mechanics_by_R.K_Bansal/chapter_15.ipynb | |
| parent | d05f35e060ec21522792779655b2d69057caa8fe (diff) | |
| download | Python-Textbook-Companions-856d4f871db9401d568629b88509a8aaf4c20626.tar.gz Python-Textbook-Companions-856d4f871db9401d568629b88509a8aaf4c20626.tar.bz2 Python-Textbook-Companions-856d4f871db9401d568629b88509a8aaf4c20626.zip | |
Added(A)/Deleted(D) following books
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A A_Textbook_of_Electrical_Technology_AC_and_DC_Machines_by_A._K._Theraja,_B.L_Thereja/c_0vE2Agb.ipynb
A A_Textbook_of_Electrical_Technology_AC_and_DC_Machines_by_A._K._Theraja,_B.L_Thereja/c_1pO6mlQ.ipynb
A A_Textbook_of_Electrical_Technology_AC_and_DC_Machines_by_A._K._Theraja,_B.L_Thereja/c_2DVKX4L.ipynb
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A BSc_3rd_Year_Physics(Paper-4)_by_Sanjeeva_Rao,_Bhikshmaiah,_Ramakrishna_Reddy,_Ananta_Ramaiah/Chapter6.ipynb
A BSc_3rd_Year_Physics(Paper-4)_by_Sanjeeva_Rao,_Bhikshmaiah,_Ramakrishna_Reddy,_Ananta_Ramaiah/Chapter7.ipynb
A BSc_3rd_Year_Physics(Paper-4)_by_Sanjeeva_Rao,_Bhikshmaiah,_Ramakrishna_Reddy,_Ananta_Ramaiah/Chapter8.ipynb
A BSc_3rd_Year_Physics(Paper-4)_by_Sanjeeva_Rao,_Bhikshmaiah,_Ramakrishna_Reddy,_Ananta_Ramaiah/Chapter9.ipynb
A BSc_3rd_Year_Physics(Paper-4)_by_Sanjeeva_Rao,_Bhikshmaiah,_Ramakrishna_Reddy,_Ananta_Ramaiah/screenshots/11.png
A BSc_3rd_Year_Physics(Paper-4)_by_Sanjeeva_Rao,_Bhikshmaiah,_Ramakrishna_Reddy,_Ananta_Ramaiah/screenshots/22.png
A BSc_3rd_Year_Physics(Paper-4)_by_Sanjeeva_Rao,_Bhikshmaiah,_Ramakrishna_Reddy,_Ananta_Ramaiah/screenshots/33.png
A Electric_Drives_Concepts_And_Applications_by_Vedam_Subrahmanyam/Chapter01.ipynb
A Electric_Drives_Concepts_And_Applications_by_Vedam_Subrahmanyam/Chapter03.ipynb
A Electric_Drives_Concepts_And_Applications_by_Vedam_Subrahmanyam/Chapter04.ipynb
A Electric_Drives_Concepts_And_Applications_by_Vedam_Subrahmanyam/Chapter05.ipynb
A Electric_Drives_Concepts_And_Applications_by_Vedam_Subrahmanyam/screenshots/Ex3.4.png
A Electric_Drives_Concepts_And_Applications_by_Vedam_Subrahmanyam/screenshots/Ex4.4.png
A Electric_Drives_Concepts_And_Applications_by_Vedam_Subrahmanyam/screenshots/Ex4.8.png
A Electronic_Communication_Systems_by_Roy_Blake/Chapter1.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter12.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter13.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter14.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter15.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter16.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter17.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter18.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter19.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter2.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter20.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter21.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter22.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter23.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter24.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter25.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter3.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter4.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter5.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter6.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter7.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter8.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/Chapter9.ipynb
A Electronic_Communication_Systems_by_Roy_Blake/screenshots/Chapter12.png
A Electronic_Communication_Systems_by_Roy_Blake/screenshots/Chapter13.png
A Electronic_Communication_Systems_by_Roy_Blake/screenshots/chapter1.png
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER1.ipynb
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER2.ipynb
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER3.ipynb
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER4.ipynb
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER5.ipynb
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER6.ipynb
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER7.ipynb
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER8.ipynb
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./screenshots/figure1.png
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./screenshots/figure2.png
A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./screenshots/figure3.png
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_10_Moments_of_Inertia.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_11__Virtual_Work.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_12_Kinematics_o_KMlkVxo.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_13_Kinetics_of__QCPBknl.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_14_Kinetics_of__nM3MpcX.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_15_Kinetics_of__XnxZDvg.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_16_Planar_Kinem_iVoLBQW.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_17_Planar_Kinet_WgJywgt.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_18_Planar_Kinet_zX8jNLD.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_19_Planar_Kinet_mpYSt47.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_1_General_Principles.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_2_Force_Vectors.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_3_Equilibrium_o_hYESk4B.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_4_Force_System__zCBXq4n.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_5_Equilibrium_o_wA2OXD7.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_6_Structural_Analysis.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_7_Internal_Forces.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_8_Friction.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_9_Center_of_Gra_jwxxiZg.ipynb
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/screenshots/plot1.png
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/screenshots/plot2.png
A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/screenshots/plot3.png
A Engineering_Mechanics_by_R.K_Bansal/chapter_1.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_11.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_12.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_13.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_14.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_15.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_16.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_17.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_18.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_2.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_20.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_3.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_4.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_5.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_6.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_7.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_8.ipynb
A Engineering_Mechanics_by_R.K_Bansal/chapter_9.ipynb
A Engineering_Mechanics_by_R.K_Bansal/screenshots/bmd1.png
A Engineering_Mechanics_by_R.K_Bansal/screenshots/sfd.png
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter10_ljUjU8j.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter11_5r7Matr.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter12.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter1_QhYeq33.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter2_GK3uH9r.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter3_18OmDFC.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter4_fMX8RWT.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter5_2AAnLS8.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter6_lGPDUWp.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter7_Ie2FcUI.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter8_vyeGLD8.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/Chapter9_4YOTRPU.ipynb
A Introduction_to_Heat_Transfer_by_S._K._Som/screenshots/9.7_xRDyNJc.png
A Introduction_to_Heat_Transfer_by_S._K._Som/screenshots/Ex10.7_G48Lnpj.png
A Introduction_to_Heat_Transfer_by_S._K._Som/screenshots/Ex11.4_8WqJsrO.png
A Strength_Of_Materials_by_S_S_Bhavikatti/chapter_10_pO7WExy.ipynb
A Strength_Of_Materials_by_S_S_Bhavikatti/chapter_2_FxNgKwZ.ipynb
A Strength_Of_Materials_by_S_S_Bhavikatti/chapter_3_xv1zQ8m.ipynb
A Strength_Of_Materials_by_S_S_Bhavikatti/chapter_4_HtsOENB.ipynb
A Strength_Of_Materials_by_S_S_Bhavikatti/chapter_5_nuHXFeE.ipynb
A Strength_Of_Materials_by_S_S_Bhavikatti/chapter_6_Ffb7zrN.ipynb
A Strength_Of_Materials_by_S_S_Bhavikatti/chapter_7_GmkvL5A.ipynb
A Strength_Of_Materials_by_S_S_Bhavikatti/chapter_8_BLulAvR.ipynb
A Strength_Of_Materials_by_S_S_Bhavikatti/chapter_9_YALeeEe.ipynb
A Strength_Of_Materials_by_S_S_Bhavikatti/screenshots/BMD_dLcLPep.JPG
A Strength_Of_Materials_by_S_S_Bhavikatti/screenshots/SFD_1.JPG
A Strength_Of_Materials_by_S_S_Bhavikatti/screenshots/SFD_2.JPG
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter1.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter10.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter11.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter12.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter13.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter14.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter15.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter16.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter17.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter18.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter19.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter4.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter5.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter6.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter7.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter8.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/Chapter9.ipynb
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/screenshots/Chapter4.png
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/screenshots/Chapter5.png
A The_Elements_of_Physical_Chemistry_by_S._Glasstone/screenshots/Chapter6.png
A "sample_notebooks/Sushovan Jena/Chapter1.ipynb"
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diff --git a/Engineering_Mechanics_by_R.K_Bansal/chapter_15.ipynb b/Engineering_Mechanics_by_R.K_Bansal/chapter_15.ipynb new file mode 100644 index 00000000..55ce0e83 --- /dev/null +++ b/Engineering_Mechanics_by_R.K_Bansal/chapter_15.ipynb @@ -0,0 +1,2665 @@ +{
+ "metadata": {
+ "name": "chapter 15.ipynb"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 15:Kinetics of Rigid Bodies And Laws of Motion"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.1,Page No.536"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "M=150 #kg #Mass of the Body\n",
+ "a=3 #m/s**2 #Acceleration \n",
+ "\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Force \n",
+ "F=M*a #N\n",
+ "\n",
+ "#Result\n",
+ "print\"FOrce is\",round(F,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "FOrce is 450.0 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.2,Page No.537"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "F=100 #N #Force\n",
+ "m=4 #kg #mass\n",
+ "t=10 #seconds #time\n",
+ "u=5 #m/s #Initial Velocity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration\n",
+ "a=F*m**-1 #m/s**2\n",
+ "\n",
+ "#Distance\n",
+ "s=u*t+a*t**2*2**-1 #m\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration is\",round(a,2),\"m/s**2\"\n",
+ "print\"Distance moved is\",round(s,2),\"m\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration is 25.0 m/s**2\n",
+ "Distance moved is 1300.0 m\n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.3,Page No.537"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=980 #N #Weight of body on the earth\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "g2=1.6 #m/s**2 #Acceleration due to gravity on moon\n",
+ "g3=270 #m/s**2 #Acceleration due to gravity on sun\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Mass\n",
+ "m=W*g**-1 #Kg\n",
+ "\n",
+ "#Weight of body on moon\n",
+ "W1=m*g2 #N\n",
+ "\n",
+ "#Weight of body on sun\n",
+ "W2=m*g3 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Weight of body on moon\",round(W1,2),\"N\"\n",
+ "print\"Weight of body on sun\",round(W2,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Weight of body on moon 160.0 N\n",
+ "Weight of body on sun 27000.0 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.4,Page No.537"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "F=200 #N #Force \n",
+ "m=300 #kg #mass\n",
+ "t=90 #sec #time\n",
+ "u=20 #m/s #Initial velocity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration\n",
+ "a=F*m**-1 #m/s**2 \n",
+ "\n",
+ "#Final Velocity in Direction of motion \n",
+ "v=u+a*t #m/s\n",
+ "\n",
+ "#Final Velocity in opposite direction of motion\n",
+ "v2=u-a*t #m/s\n",
+ "\n",
+ "#Result\n",
+ "print\"Final Velocity in Direction of motion\",round(v,2),\"m/s\"\n",
+ "print\"Final Velocity in opposite direction of motion\",round(v2,2),\"m/s\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Final Velocity in Direction of motion 80.0 m/s\n",
+ "Final Velocity in opposite direction of motion -40.0 m/s\n"
+ ]
+ }
+ ],
+ "prompt_number": 5
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.5,Page No.538"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "m=15 #kg #Mass \n",
+ "h=19.6 #m #Height of body from ground\n",
+ "F=4900 #N #Force of resistance\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Final Velocity of body\n",
+ "v=(2*g*h)**0.5 #m/s\n",
+ "\n",
+ "#Weight of body\n",
+ "W=m*g #N\n",
+ "\n",
+ "#Net Force acting in the upward direction\n",
+ "F2=F-W #N\n",
+ "\n",
+ "#Acceleration\n",
+ "a=F2*m**-1 #m/s**2 \n",
+ "\n",
+ "#Part-2\n",
+ "\n",
+ "v2=0 #Final Velocity after penetration into the ground\n",
+ "u=v #Initial Velocity on the ground\n",
+ "\n",
+ "#Distance penetrated into the ground\n",
+ "s=-(v2**2-u**2)*(2*a)**-1 #m \n",
+ "\n",
+ "#Result\n",
+ "print\"Distance penetrated into the ground\",round(s,3),\"m\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Distance penetrated into the ground 0.606 m\n"
+ ]
+ }
+ ],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.6,Page No.539"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=637 #N #Weight of man\n",
+ "h=19.6 #m #Height of Tower\n",
+ "u=0 #m/s #Initial Velocity of man when he reaches the water surface\n",
+ "g=9.8 #m/s**2 #acceleration due to gravity\n",
+ "s=2 #m #Distance travelled\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Final Velocity of man when he reaches the water surface\n",
+ "v=(2*g*h)**0.5 #m/s\n",
+ "\n",
+ "#acceleration\n",
+ "a=v**2*(2*s)**-1 #m/s**2 #m/s**2\n",
+ "\n",
+ "#Mass of man\n",
+ "m=W*g**-1 #Kg \n",
+ "\n",
+ "#Average resistance of water\n",
+ "F=m*a+W #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Average Resistance of water\",round(F,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Average Resistance of water 6879.6 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 8
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.7,Page No.540"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "m=0.081 #kg\n",
+ "v=300 #m/s #velocity\n",
+ "s=0.1 #m #Depth\n",
+ "s2=0.05 #m #Distance travelled\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration \n",
+ "a=v**2*(2*s)**-1 #m/s**2 \n",
+ "\n",
+ "#Force offered by wood to the bullet\n",
+ "F=m*a #N\n",
+ "\n",
+ "#Velocity\n",
+ "v=-(u**2-(2*a*s2)) #m/s\n",
+ "v2=v**0.5 #m/s\n",
+ "\n",
+ "#Result\n",
+ "print\"Force of resistance\",round(v2,2),\"m/s\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Force of resistance 212.13 m/s\n"
+ ]
+ }
+ ],
+ "prompt_number": 9
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.8,Page No.541"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "v=0 #Final Velocity\n",
+ "s=60 #m #Distance travelled\n",
+ "mu=0.4 #coefficient of friction\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#acceleration\n",
+ "a=mu*g #m/s**2\n",
+ "\n",
+ "#speed of car\n",
+ "u=(2*a*s)**0.5*1000**-1*3600 #m/s\n",
+ "\n",
+ "#Result\n",
+ "print\"Speed of car is\",round(u,2),\"Km/hr\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Speed of car is 78.08 Km/hr\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.9,Page No.542"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "F1=2000 #N #Tractive of force exerted by railway car\n",
+ "W=50 #KN #Weight of car\n",
+ "g=9.81 #m/s**2 #acceleration due to gravity \n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#mass of car\n",
+ "m=W*1000*g**-1 #N\n",
+ "\n",
+ "#Frictional resistance\n",
+ "F2=5*W\n",
+ "\n",
+ "#Net Force in Direction of motion\n",
+ "F=F1-F2 #N\n",
+ "\n",
+ "#Acceleration\n",
+ "a=F*m**-1\n",
+ "\n",
+ "#Result\n",
+ "print\"acceleration when the car is moving\",round(a,2),\"m/s**2\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "acceleration when the car is moving 0.34 m/s**2\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.10,Page No.542"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=1960*1000 #N #Weight of train\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#mass of train \n",
+ "m=W*g**-1 #kg\n",
+ "\n",
+ "#final Velocity\n",
+ "v=100*3**-1 #m/s\n",
+ "t=5*60 #sec\n",
+ "\n",
+ "#Acceleration\n",
+ "a=v*t**-1 #m/s**2 \n",
+ "\n",
+ "#Average pull required\n",
+ "F2=m*a+19600\n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Average pull required\",round(F2,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Average pull required 41822.22 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 12
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.11,Page No.544"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=200 #N #Weight of Body\n",
+ "g=9.81 #m/s**2 #aceleration due to gravity\n",
+ "theta=45 #Degrees #Angle of plane\n",
+ "u=0 #m/s #Initial Velocity\n",
+ "v=2 #m/s #Final velocity\n",
+ "mu=0.1 #coefficient of friction\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration of body\n",
+ "a=g*(sin(theta*pi*180**-1)-mu*cos(theta*pi*180**-1)) #m/s**2\n",
+ "\n",
+ "#Distance\n",
+ "s=(v**2-u**2)*(2*a)**-1 #m\n",
+ "\n",
+ "#Result\n",
+ "print\"Distance along inclined plane is\",round(s,2),\"m\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Distance along inclined plane is 0.32 m\n"
+ ]
+ }
+ ],
+ "prompt_number": 13
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.12,Page No.544"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "u=0 #m/s #Initial Velocity\n",
+ "theta=20 #degree #Angle of inclination\n",
+ "mu1=0.08 #Coefficient of friction between the plane and lower body\n",
+ "mu2=0.08 #Coefficient of friction between the plane and upper body\n",
+ "d=10 #m #distance beween two body\n",
+ "g=9.81 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration of lower body down the plane\n",
+ "a1=g*(sin(theta*pi*180**-1)-mu1*cos(theta*pi*180**-1)) #m/s**2\n",
+ "\n",
+ "#Acceleration of upper body \n",
+ "a2=g*(sin(theta*pi*180**-1)-mu2*cos(theta*pi*180**-1)) #m/s**2\n",
+ "\n",
+ "#Distance travelled by lower body\n",
+ "#s1=u*t+a1*t**2*2**-1\n",
+ "#After sub values and further simplifying we get\n",
+ "#s1=1.3805*t**2 ...................1\n",
+ "\n",
+ "#Distance travelled by upper body\n",
+ "#s1=u*t+a1*t**2*2**-1\n",
+ "#After sub values and further simplifying we get\n",
+ "#s1=1.447*t**2 .......................2\n",
+ "\n",
+ "#Further simplfying we get\n",
+ "t=(10*0.1385**-1)**0.5 #s\n",
+ "\n",
+ "#sub value of t in equation 1 and 2\n",
+ "s1=1.3805*round(t,2)**2 #m\n",
+ "s2=1.447*round(t,2)**2 #m\n",
+ "\n",
+ "#Result\n",
+ "print\"distance through which each body travels before they meet:s1\",round(s1,2),\"m\"\n",
+ "print\" :s2\",round(s2,2),\"m\"\n",
+ "\n",
+ "#Answer of s1 is incorrect in book"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "distance through which each body travels before they meet:s1 99.74 m\n",
+ " :s2 104.55 m\n"
+ ]
+ }
+ ],
+ "prompt_number": 14
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.13,Page No.546"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=6000 #N #Weight of truck\n",
+ "u=10 #m/s #speed of truck\n",
+ "#sin(theta)=1*40**-1\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Road Resistance\n",
+ "F1=W*1*40**-1 #N\n",
+ "\n",
+ "#Frictional Force\n",
+ "F2=F1*(W*10**-3)**-1\n",
+ "\n",
+ "#PArt-2\n",
+ "\n",
+ "#Speed of truck\n",
+ "u2=2*u #m/s\n",
+ "\n",
+ "#Force exerted by engine up theplane\n",
+ "P=W*1*40**-1+F1 #N\n",
+ "\n",
+ "#Power Exerted by engine\n",
+ "P2=P*u2*1000**-1 #KW\n",
+ "\n",
+ "#Result\n",
+ "print\"Frictional Force of truck is\",round(F2,2),\"N\"\n",
+ "print\"Power Exerted by engine is\",round(P2,2),\"KW\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Frictional Force of truck is 25.0 N\n",
+ "Power Exerted by engine is 6.0 KW\n"
+ ]
+ }
+ ],
+ "prompt_number": 15
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.14,Page No.547"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=200*10**3 #N #Weight of train\n",
+ "#sin(theta)=1*150**-1 #Slope of track\n",
+ "u=5 #m/s #speed of train\n",
+ "p=3.5 #KW #Power developed by engine\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Case-1\n",
+ "\n",
+ "#power developed by engine\n",
+ "P=p*1000*u**-1 #N\n",
+ "\n",
+ "#Net Force \n",
+ "F=W*1*150**-1+P #N\n",
+ "\n",
+ "#Case-2\n",
+ "\n",
+ "#Force exerted by engine while moving up\n",
+ "P2=W*1*150**-1+F #N\n",
+ "\n",
+ "#Power developed by engine\n",
+ "P3=P2*u*1000**-1 #KW\n",
+ "\n",
+ "#Result\n",
+ "print\"Power Developed by Engine to pull up the train is\",round(P3,2),\"KW\"\n",
+ "\n",
+ "#Answer of Power developed by engine is incorrect i.e P so answer of Power Developed by Engine to pull up the train is also incorrect i.e P3"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Power Developed by Engine to pull up the train is 16.83 KW\n"
+ ]
+ }
+ ],
+ "prompt_number": 16
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.15,Page No.549"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "L_BC=100 #m #Distance\n",
+ "V=20*3**-1 #m/s #Velocity\n",
+ "W=20000 #N #Weight\n",
+ "g=9.81 #m/s**2 #acceleration due to gravity\n",
+ "m=W*g**-1 #Mass of car\n",
+ "#sin(theta)=5*100**-1\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Frictional resistance due to track\n",
+ "F=8*20 #N\n",
+ "\n",
+ "#Final Velocity of car at D\n",
+ "v=0 \n",
+ "\n",
+ "#Component of weight of train\n",
+ "W2=W*5*100**-1 #N\n",
+ "\n",
+ "#Total Retarding Force against motion\n",
+ "F2=F+W2 #N\n",
+ "\n",
+ "#acceleration\n",
+ "a=F2*g*W**-1 #m/s**2\n",
+ "\n",
+ "#Distance\n",
+ "s=V**2*(2*round(a,3))**-1 #m\n",
+ "\n",
+ "#PArt-2\n",
+ "\n",
+ "#Dstance travelled by car From B to E\n",
+ "\n",
+ "#Distance BD\n",
+ "s_BD=s+L_BC #m\n",
+ "\n",
+ "F3=840 #N #Net Force down the grade\n",
+ "\n",
+ "#Acceleration \n",
+ "a2=F3*g*W**-1 #m/s**2\n",
+ "\n",
+ "#Velocity\n",
+ "v2=(2*a2*s_BD)**0.5 #m/s\n",
+ "\n",
+ "#PArt 3\n",
+ "\n",
+ "#Motion From B to E\n",
+ "\n",
+ "#acceleration\n",
+ "a3=F*g*W**-1 #m/s**2\n",
+ "\n",
+ "#Initial velocity at B\n",
+ "u_B=10.70 #m/s\n",
+ "\n",
+ "#Distance\n",
+ "s2=u_B**2*(2*round(a3,3))**-1 #m\n",
+ "\n",
+ "#Result\n",
+ "print\"Distance travelled by car before stopping is\",round(s,2),\"m\"\n",
+ "print\"Distance travelled by car beyond Bon level track before stopping at E\",round(s2,2),\"m\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Distance travelled by car before stopping is 39.05 m\n",
+ "Distance travelled by car beyond Bon level track before stopping at E 733.91 m\n"
+ ]
+ }
+ ],
+ "prompt_number": 17
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.16,Page No.552"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=100 #N #Weight carried by lift\n",
+ "a=2.45 #m/s**2 #Acceleration\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Tension in the cables supporting the lift\n",
+ "\n",
+ "#Lift moving upwards\n",
+ "T=W*(1+a*g**-1) #N\n",
+ "\n",
+ "#Lift moving downwards\n",
+ "T2=W*(1-a*g**-1) #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Tension in the cables supporting the lift:when moving upwards\",round(T,2),\"N\"\n",
+ "print\"Tension in the cables supporting the lift:when moving downward\",round(T2,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Tension in the cables supporting the lift:when moving upwards 125.0 N\n",
+ "Tension in the cables supporting the lift:when moving downward 75.0 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 18
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.16(A),Page No.553"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "a=1 #m/s**2 #upward acceleration\n",
+ "W=600 #N #weight of man\n",
+ "g=9.81 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#NEt Force in upward direction\n",
+ "F=W*g**-1 #N\n",
+ "\n",
+ "#But net Force in upward direction\n",
+ "T=F+W #N\n",
+ "\n",
+ "#Result\n",
+ "print\"net Force in upward direction\",round(T,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "net Force in upward direction 661.16 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 19
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.17,Page No.553"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "a=1.225 #m/s**2 #upward acceleration\n",
+ "W=500 #N #Weight of man\n",
+ "g=9.8 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Tension in the cables supporting the lift\n",
+ "\n",
+ "#Lift moving upwards\n",
+ "T=W*(1+a*g**-1) #N\n",
+ "\n",
+ "#lift moving downwards\n",
+ "T2=W*(1-a*g**-1) #N\n",
+ "\n",
+ "#Lift moving upwards with unknown acceleration\n",
+ "T3=600 #N #Pressure exerted by man\n",
+ "a=(T3-W)*g*W**-1 #m/s**2\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration upwards is\",round(a,2),\"m/s**2\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration upwards is 1.96 m/s**2\n"
+ ]
+ }
+ ],
+ "prompt_number": 20
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.18,Page No.554"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=2500 #N #Weight of an elevator\n",
+ "u=0 #m/s #Initial Velocity\n",
+ "s=35 #m #Distance travelled\n",
+ "t=10 #sec #time\n",
+ "g=9.81 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Tension in the cables\n",
+ "\n",
+ "#When acceleration is zero i.e a=0\n",
+ "a=0 #m/s**2\n",
+ "T=W*(1-a*g**-1) #N\n",
+ "\n",
+ "#When acceleration is zero i.e a=0\n",
+ "a2=9.81 #m/s**2\n",
+ "T2=W*(1-a2*g**-1) #N\n",
+ "\n",
+ "#Using equation of distance\n",
+ "a3=(s-u*t)*2*(t**2)**-1 #m/s**2\n",
+ "\n",
+ "#Tension in the cable at time t=10 sec\n",
+ "T3=W*(1-a3*g**-1) #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Limits of table Tension is:when a=0\",round(T,2),\"N\"\n",
+ "print\" :when a=9.81 m/s**2\",round(T2,2),\"N\"\n",
+ "print\"Cable Tension at time t=10 sec\",round(T3,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Limits of table Tension is:when a=0 2500.0 N\n",
+ " :when a=9.81 m/s**2 0.0 N\n",
+ "Cable Tension at time t=10 sec 2321.61 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 21
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.19,Page No.555"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "W=5000 #N #Weight of 10 men on the cage\n",
+ "u=0 #m/s #Initial Velocity of cage\n",
+ "v=12 #m/s #Final Velocity\n",
+ "s=20 #m #Distance travelled\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#acceleration\n",
+ "a=(v**2-u**2)*(2*s)**-1 #m/s**2\n",
+ "\n",
+ "#Tension in cable while moving downwards\n",
+ "T=W*(1-a*g**-1) #N\n",
+ "\n",
+ "#Tension produced by one men\n",
+ "T2=T*10**-1 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Pressure Exerted by each man on the cage\",round(T2,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Pressure Exerted by each man on the cage 316.33 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 22
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.20,Page No.556"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=5000 #N #Weight of elevator\n",
+ "a=3 #m/s**2 #Acceleration\n",
+ "W2=700 #N #weight of perator \n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Reaction offered by floor on operator\n",
+ "R=W*g**-1*a+W2 #N\n",
+ "\n",
+ "#Total Weight \n",
+ "W3=W+W2 #N\n",
+ "\n",
+ "#Total Tension in the cable\n",
+ "T=W3*g**-1*a+W3 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Total tension in the cable\",round(T,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Total tension in the cable 7444.9 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 23
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.21,Page No.558"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W1=50 #N #Heavier Weight\n",
+ "W2=30 #N #lighter Weight\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration of the system\n",
+ "a=g*(W1-W2)*(W1+W2)**-1 #m/s**2 \n",
+ "\n",
+ "#Tension in the string\n",
+ "T=2*W1*W2*(W1+W2)**-1 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration of the system\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension in the string\",round(T,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration of the system 2.45 m/s**2\n",
+ "Tension in the string 37.5 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 24
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.22,Page No.558"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "W1=60 #N #bigger weight\n",
+ "a=3 #m/s**2 #Acceleration of the system\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#smaller Weight\n",
+ "W2=-(a*W1*g**-1-W1)*(a*g**-1+1)**-1 #N\n",
+ "\n",
+ "#Tension in the string\n",
+ "T=2*W1*W2*(W1+W2)**-1 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Smaller Weight is\",round(W2,2),\"N\"\n",
+ "print\"Tension in the string\",round(T,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Smaller Weight is 31.88 N\n",
+ "Tension in the string 41.63 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 25
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.23,Page No.559"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W1=700 #N #Bigger Load\n",
+ "W2=500 #N #Smaller Load\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Weight of block A when acceleration is g/3\n",
+ "W1_1=((3*W2)+W2)*2**-1 #N\n",
+ "\n",
+ "#Weight added \n",
+ "W=W1_1-W1 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Weight added is\",round(W,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Weight added is 300.0 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 26
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.24,Page No.560"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W_A=150 #N #Weight of block A\n",
+ "W_B=50 #N #Weight of block B\n",
+ "g=9.81 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration\n",
+ "a=(W_A-W_B*2)*((W_B*2+(W_A*2**-1))*g**-1)**-1 #m/s**2\n",
+ "\n",
+ "#Acceleration of block B\n",
+ "a_B=a #m/s**2\n",
+ "\n",
+ "#Acceleration of block A\n",
+ "a_A=a*2**-1 #m/s**2 \n",
+ "\n",
+ "#Tensions in the string\n",
+ "T=W_B+W_B*g**-1*a #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Tensions in the string is\",round(T,2),\"N\"\n",
+ "print\"Acceleration of block B is\",round(a_B,2),\"m/s**2\"\n",
+ "print\"Acceleration of block A is\",round(a_A,2),\"m/s**2\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Tensions in the string is 64.29 N\n",
+ "Acceleration of block B is 2.8 m/s**2\n",
+ "Acceleration of block A is 1.4 m/s**2\n"
+ ]
+ }
+ ],
+ "prompt_number": 27
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.25,Page No.561"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W1=15 #N #weight over pulley A\n",
+ "W2=10 #N #total weight over pulley B\n",
+ "w1=6 #N #weight over pulley B\n",
+ "w2=4 #N #weight over pulley B\n",
+ "g=9.80 #m/s**2 #acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Consider motion of weight 15 N\n",
+ "#(W1-T1)=W1*g**-1*a ..........................(1)\n",
+ "\n",
+ "#Consider motion of weight 4 N\n",
+ "#(T2-w2)=w2*g**-1*(a1+a) ...................(2)\n",
+ "\n",
+ "#Consider motion of weight 6 N\n",
+ "#(w1-w2)=w1*g**-1*(a1-a) .........................(3)\n",
+ "\n",
+ "#Consider motion of pulley B\n",
+ "#T1=2*T2 ...............................(4)\n",
+ "\n",
+ "#Adding equations 2 and 3 we get\n",
+ "#g=5*a1-a .......................................(5)\n",
+ "\n",
+ "#Multiplying equation (2) by 2\n",
+ "#2*T2-8=8*g**-1*(a1+a)\n",
+ "\n",
+ "#But sub value 2*T2=T1 in equation above\n",
+ "#T1-8=8*g**-1*(a1+a) .......................................(6)\n",
+ "\n",
+ "#Adding equation 1 and 6\n",
+ "#7*g=23*a+8*a1 .......................................(7)\n",
+ "\n",
+ "#Multiplying equation (5) by 23\n",
+ "#23*g=-23*a+5*23*a1 .......................................(8)\n",
+ "\n",
+ "#Adding equation 7 and 8 we get\n",
+ "a1=30*g*123**-1 #m/s**2\n",
+ "\n",
+ "#sub value of equation 5 we get\n",
+ "a=5*a1-g #m/s**2\n",
+ "\n",
+ "#Acceleration of weight 15 N\n",
+ "a_15=a #m/s**2\n",
+ "\n",
+ "#Acceleration of weight 6 N\n",
+ "a_6=a1-a #m/s**2\n",
+ "\n",
+ "#Acceleration of weight 4 N\n",
+ "a_4=a1+a #m/s**2 \n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration of weight 15 N\",round(a_15,2),\"m/s**2\"\n",
+ "print\"Acceleration of weight 6 N\",round(a_6,2),\"m/s**2\"\n",
+ "print\"Acceleration of weight 4 N\",round(a_4,2),\"m/s**2\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration of weight 15 N 2.15 m/s**2\n",
+ "Acceleration of weight 6 N 0.24 m/s**2\n",
+ "Acceleration of weight 4 N 4.54 m/s**2\n"
+ ]
+ }
+ ],
+ "prompt_number": 28
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.26,Page No.565"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "#Weight of bodies\n",
+ "W1=10 #N #Weight placed on Horizontal surface \n",
+ "W2=20 #N #Weight hanging free in air\n",
+ "g=9.81 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration of the system\n",
+ "a=g*W1*(W1+W2)**-1 #m/s**2\n",
+ "\n",
+ "#tension in the string\n",
+ "T=W1*W2*(W1+W2)**-1 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration of the system\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension in the string\",round(T,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration of the system 3.27 m/s**2\n",
+ "Tension in the string 6.67 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 29
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.27,Page No.565"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=20 #N #Weight on horizontal surface\n",
+ "mu=0.3 #coefficient of friction\n",
+ "W2=20 #N #Weight hanging free in air\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration of the system\n",
+ "a=g*(W1-mu*W2)*(W1+W2)**-1 #m/s**2\n",
+ "\n",
+ "#tension in the string\n",
+ "T=W1*W2*(1+mu)*(W1+W2)**-1 #N\n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration of the system\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension in the string\",round(T,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration of the system 1.31 m/s**2\n",
+ "Tension in the string 8.67 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 30
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.28,Page No.566"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W1=10 #N #Weight of block A\n",
+ "W2=20 #N #weight of block B\n",
+ "mu=0.25 #coefficient of friction\n",
+ "s=2 #m #Distance moved by block\n",
+ "u=0 #Initial velocity of block B\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration\n",
+ "a=g*(W1-mu*W2)*(W1+W2)**-1 #m/s**2\n",
+ "\n",
+ "#velocity of block B\n",
+ "v=u**2+2*a*s #m/s\n",
+ "\n",
+ "#Result\n",
+ "print\"velocity of block B\",round(v,2),\"m/s\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "velocity of block B 6.54 m/s\n"
+ ]
+ }
+ ],
+ "prompt_number": 31
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.29,Page No.566"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W2=10 #Weight placed on rough horizontal surface\n",
+ "W1_1=1.5 #N #Weight hanging free in air\n",
+ "W1=0.5 #N #additional weight added \n",
+ "T=1.5 #N #Tension in the string\n",
+ "R=10 #N #Normal Reaction\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Total Weight hanging in air\n",
+ "W=W1_1+W1\n",
+ "\n",
+ "#Max Frictional Force \n",
+ "F=T=1.5 #N\n",
+ "\n",
+ "#Coefficient of friction \n",
+ "mu=F*R**-1\n",
+ "\n",
+ "#Acceleration of two weights\n",
+ "a=g*(W-mu*W2)*(W+W2)**-1 #m/s**2 \n",
+ "\n",
+ "#Tension in the string\n",
+ "T1=W*W2*(1+mu)*(W+W2)**-1 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration of two weights is\",round(a,3),\"m/s**2\"\n",
+ "print\"Tension in the string\",round(T1,3),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration of two weights is 0.409 m/s**2\n",
+ "Tension in the string 1.917 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 32
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.30,Page No.568"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W2=1500 #N #weight of body A\n",
+ "W1=1000 #N #Weight of body B\n",
+ "\n",
+ "#Coefficient of friction\n",
+ "mu=mu1=mu2=0.2\n",
+ "\n",
+ "#T1=1.3691*T2\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration\n",
+ "a=(W1-1.3691*mu*W2)*((W1*g**-1)+1.3691*W2*g**-1)**-1 #m/s**2\n",
+ "\n",
+ "#Tension in the string to which weight 1500 N is attached\n",
+ "T2=W2*g**-1*round(a,2)+mu*W2 #N\n",
+ "\n",
+ "#Tension in the string to which weight 1000 N is attached\n",
+ "T1=1.3691*round(T2,3)\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration of the systems is\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension in the string:T1\",round(T1,2),\"N\"\n",
+ "print\" :T2\",round(T2,2),\"N\"\n",
+ "\n",
+ "#Answer for T2 is incorrect in the book"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration of the systems is 1.89 m/s**2\n",
+ "Tension in the string:T1 806.39 N\n",
+ " :T2 588.99 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 33
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.31,Page No.573"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W1=15 #N #Weight of hanging free in air\n",
+ "W2=40 #N #weight placed on inclined plane\n",
+ "theta=15 #degree #Inclination\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration\n",
+ "a=g*(W1-W2*sin(theta*pi*180**-1))*(W1+W2)**-1 #m/s**2\n",
+ " \n",
+ "#Tension in string\n",
+ "T=W1*W2*(1+sin(theta*pi*180**-1))*(W1+W2)**-1 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration is\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension in the string is\",round(T,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration is 0.83 m/s**2\n",
+ "Tension in the string is 13.73 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 34
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.32,Page No.573"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W1=25 #N #Weight of hanging free in air\n",
+ "W2=40 #N #weight placed on inclined plane\n",
+ "theta=15 #degree #Inclination\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "mu=0.2 #coefficient of friction\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration\n",
+ "a=g*(W1-W2*sin(theta*pi*180**-1)-mu*W2*cos(theta*pi*180**-1))*(W1+W2)**-1 #m/s**2\n",
+ "\n",
+ "#Tension\n",
+ "T=W1*W2*(1+sin(theta*pi*180**-1)+mu*cos(theta*pi*180**-1))*(W1+W2)**-1\n",
+ "\n",
+ "#Distance\n",
+ "u=0 #m/s\n",
+ "t=3 #sec\n",
+ "s=u*t+a*t**2*2**-1 #m\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration is\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension is\",round(T,2),\"N\"\n",
+ "print\"Distance moved by 25 N is\",round(s,2),\"m\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration is 1.04 m/s**2\n",
+ "Tension is 22.34 N\n",
+ "Distance moved by 25 N is 4.69 m\n"
+ ]
+ }
+ ],
+ "prompt_number": 35
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.33,Page No.578"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "#For Circular Lamina\n",
+ "D=60 #cm\n",
+ "m=0.001 #kg/cm**2 #mass per unit area\n",
+ "\n",
+ "#For circular cyclinder\n",
+ "D2=80 #cm\n",
+ "h=15 #cm #height\n",
+ "m2=0.002 #kg/cm**3\n",
+ "\n",
+ "#For solid sphere\n",
+ "D3=40 #cm\n",
+ "m3=0.0015 #kg/cm**3\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#For Circular Lamina\n",
+ "\n",
+ "#Radius\n",
+ "R=D*2**-1 #cm\n",
+ "\n",
+ "#Total Mass\n",
+ "M=m*pi*R**2 #kg\n",
+ "\n",
+ "#Moment of Inertia of circular section\n",
+ "I_zz=M*R**2*2**-1 #Kg/cm**2\n",
+ "\n",
+ "#Radius of Gyration For circular section\n",
+ "k=R*((2)**0.5)**-1 #cm\n",
+ "\n",
+ "#For circular cyclinder\n",
+ "\n",
+ "#Radius\n",
+ "R2=D2*2**-1 #cm\n",
+ "\n",
+ "#Total Mass\n",
+ "M2=m2*pi*R2**2*h #kg\n",
+ "\n",
+ "#Moment of Inertia of circular section\n",
+ "I_zz2=M2*R2**2*2**-1 #Kg/cm**2\n",
+ "\n",
+ "#Radius of Gyration For circular section\n",
+ "k2=R2*((2)**0.5)**-1 #cm\n",
+ "\n",
+ "#For solid sphere\n",
+ "\n",
+ "#Radius\n",
+ "R3=D3*2**-1 #cm\n",
+ "\n",
+ "#Total Mass\n",
+ "M3=m3*4*pi*R3**3*3**-1 #kg\n",
+ "\n",
+ "#Moment of Inertia of circular section\n",
+ "I_zz3=2*5**-1*M3*R3**2 #Kg/cm**2\n",
+ "\n",
+ "#Radius of Gyration For circular section\n",
+ "k3=R3*0.6324 #cm\n",
+ "\n",
+ "#Result\n",
+ "print\"M.I of Circular Lamina is\",round(I_zz,2),\"Kg/cm**2\"\n",
+ "print\"Radius of gyration of Circular Lamina is\",round(k,2),\"cm\"\n",
+ "\n",
+ "print\"M.I of circular cyclinder is\",round(I_zz2,2),\"Kg/cm**2\"\n",
+ "print\"Radius of gyration of circular cyclinder is\",round(k2,2),\"cm\"\n",
+ "\n",
+ "\n",
+ "print\"M.I of solid sphere is\",round(I_zz3,2),\"Kg/cm**2\"\n",
+ "print\"Radius of gyration of solid sphere is\",round(k3,2),\"cm\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "M.I of Circular Lamina is 1272.35 Kg/cm**2\n",
+ "Radius of gyration of Circular Lamina is 21.21 cm\n",
+ "M.I of circular cyclinder is 120637.16 Kg/cm**2\n",
+ "Radius of gyration of circular cyclinder is 28.28 cm\n",
+ "M.I of solid sphere is 8042.48 Kg/cm**2\n",
+ "Radius of gyration of solid sphere is 12.65 cm\n"
+ ]
+ }
+ ],
+ "prompt_number": 36
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.34,Page No.579"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "D=90 #cm #Diameter of grindstone\n",
+ "t=10 #cm #Thickness\n",
+ "m=0.0026 #kg/cm**3 #Mass per unit volume\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Radius\n",
+ "R=D*2**-1 #cm\n",
+ "\n",
+ "#Total Mass\n",
+ "M=m*pi*R**2*t #kg\n",
+ "\n",
+ "#M.I of of grindstone\n",
+ "I_zz=M*R**2*2**-1 #Kg/cm**2\n",
+ "\n",
+ "#Radius of gyration\n",
+ "k=R*((2)**0.5)**-1 #cm\n",
+ "\n",
+ "#Result\n",
+ "print\"M.I of Grindstone is\",round(I_zz,2),\"Kg/cm**2\"\n",
+ "print\"Radius of gyration is\",round(k,2),\"cm\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "M.I of Grindstone is 167472.41 Kg/cm**2\n",
+ "Radius of gyration is 31.82 cm\n"
+ ]
+ }
+ ],
+ "prompt_number": 37
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.35,Page No.581"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=1000 #N #Weight of flying wheel\n",
+ "k=0.5 #m\n",
+ "T=1200 #N*m #Torque\n",
+ "g=9.80 #m/s**2\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#MAss of flywheel\n",
+ "M=W*g**-1 #Kg\n",
+ "\n",
+ "#Moment of Inertia\n",
+ "I=M*k**2 #Kg/m**2\n",
+ "\n",
+ "#Angular Acceleration\n",
+ "alpha=T*I**-1 #radians/s**2\n",
+ "\n",
+ "#Result\n",
+ "print\"Angular Acceleration of flywheel is\",round(alpha,2),\"radians/s**2\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Angular Acceleration of flywheel is 47.04 radians/s**2\n"
+ ]
+ }
+ ],
+ "prompt_number": 38
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.35(A),Page No.582"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "I=12 #Kg*m**2 #M.I of circular disc\n",
+ "t=3 #s #Time\n",
+ "T=800 #N*m #Torque\n",
+ "w_o=0 #m/s #Angular velocity initially\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "alpha=T*I**-1 #radians/s**2\n",
+ "\n",
+ "#Angular velocity after 3 seconds\n",
+ "w=w_o+alpha*t #rad/s\n",
+ "\n",
+ "#Result\n",
+ "print\"angular Velocity after 3 seconds\",round(w,2),\"rad/s\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "angular Velocity after 3 seconds 200.0 rad/s\n"
+ ]
+ }
+ ],
+ "prompt_number": 39
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.36,Page No.582"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "M=5000 #kg #Mass of flywheel\n",
+ "k=1 #m #radius of gyration \n",
+ "N_o=400 #r.p.m #Initial Velocity\n",
+ "N=280 #r.p.m #Final speed\n",
+ "t=120 #seconds #Time\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Initial Angular velocity\n",
+ "w_o=2*pi*N_o*60**-1 #rad/s\n",
+ "\n",
+ "#Final Angular velocity\n",
+ "w=2*pi*N*60**-1 #rad/s \n",
+ "\n",
+ "#M.I\n",
+ "I=M*k**2 #kg/m**2\n",
+ "\n",
+ "#Angular acceleration\n",
+ "alpha=(w-w_o)*t**-1 #rad/s**2\n",
+ "\n",
+ "#Torque\n",
+ "T=-M*alpha #N*m\n",
+ "\n",
+ "#Final K.E\n",
+ "E2=round(w,2)**2*I*2**-1 #N*m\n",
+ "\n",
+ "#Initial K.E\n",
+ "E1=41.88**2*I*2**-1 #N*m\n",
+ "\n",
+ "#Change in K.E\n",
+ "E=E2-E1 #N*m\n",
+ "\n",
+ "#Initial Momentum\n",
+ "p1=I*round(w,2) #N*m/s\n",
+ "\n",
+ "#Final Momentum\n",
+ "p2=I*41.88 #N*m/s\n",
+ "\n",
+ "#Change in angular Momentum\n",
+ "p=p2-p1 #N*m/s\n",
+ "\n",
+ "#Result\n",
+ "print p1\n",
+ "print\"Retading Torque acting is\",round(T,2),\"N*m\"\n",
+ "print\"Change in K.E is\",round(E,2),\"N*m\"\n",
+ "print\"Change in Angular Momentum is\",round(p,2),\"N*m/s\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "146600.0\n",
+ "Retading Torque acting is 523.6 N*m\n",
+ "Change in K.E is -2235680.0 N*m\n",
+ "Change in Angular Momentum is 62800.0 N*m/s\n"
+ ]
+ }
+ ],
+ "prompt_number": 40
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.37,Page No.583"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "V=0.2 #m/s #Linear Velocity\n",
+ "W=0.1 #N #Weight of cyclinder\n",
+ "R=0.1 #m #Radius\n",
+ "g=9.81 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Mass \n",
+ "M=W*g**-1 #Mass\n",
+ "\n",
+ "#M.I\n",
+ "I=M*R**2*2**-1 \n",
+ "\n",
+ "#Angular Velocity\n",
+ "w=V*R**-1 #rad/s\n",
+ "\n",
+ "#Total K.E\n",
+ "E=(I*w**2+M*V**2)*2**-1 #N*m\n",
+ "\n",
+ "#Result\n",
+ "print\"Total Kinetic Energy is\",round(E,6),\"N*m\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Total Kinetic Energy is 0.000306 N*m\n"
+ ]
+ }
+ ],
+ "prompt_number": 41
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.38,Page No.584"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "k=0.5 #m #Radius of Gyration\n",
+ "W=6000 #N #Weight of flywheel\n",
+ "N_o=0 #Initial r.p.m\n",
+ "N=200 #Final r.p.m \n",
+ "t=120 #seconds\n",
+ "g=9.80 #m/s**2\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#MAss\n",
+ "M=W*g**-1 #Kg\n",
+ "\n",
+ "#Initial Angular Velocity\n",
+ "w_o=2*pi*N_o*60**-1 \n",
+ "\n",
+ "#Final Angular Velocity\n",
+ "w=2*pi*N*60**-1 #rad/s\n",
+ "\n",
+ "#M.I\n",
+ "I=M*k**2 \n",
+ "\n",
+ "#Angular acceleration\n",
+ "alpha=(w-w_o)*t**-1 #rad/s**2\n",
+ "\n",
+ "#Torque Exerted\n",
+ "T=I*alpha #N*m\n",
+ "\n",
+ "#Result\n",
+ "print\"Average Torque exerted is\",round(T,2),\"N*m\"\n",
+ "\n",
+ "#Answer for M.I is incorrect so value of Torque in book is incorrect"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Average Torque exerted is 26.71 N*m\n"
+ ]
+ }
+ ],
+ "prompt_number": 42
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.38(A),Page No.585"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "#weights\n",
+ "W_A=100 #N\n",
+ "W_B=180 #N\n",
+ "\n",
+ "#Radii\n",
+ "r_A=0.1 #m \n",
+ "r_B=0.15 #m\n",
+ "\n",
+ "#RAdius of gyration\n",
+ "k_A=0.08 #m \n",
+ "k_B=0.13 #m\n",
+ "\n",
+ "theta=30 #degree #Inclination of plane\n",
+ "g=9.81 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Wheel A\n",
+ "\n",
+ "#Angular acceleration \n",
+ "alpha_A=(W_A*sin(theta*pi*180**-1)*r_A)*(W_A*g**-1*(k_A**2+r_A**2))**-1 #rad/s\n",
+ "\n",
+ "#Linear acc. of wheel \n",
+ "alpha_A_a=alpha_A*r_A #m/s**2\n",
+ "\n",
+ "#Wheel B\n",
+ "\n",
+ "#Angular acceleration\n",
+ "alpha_B=W_B*sin(theta*pi*180**-1)*r_B*((W_B*g**-1*(k_B**2+r_B**2)))**-1\n",
+ "\n",
+ "#Linear acc. of wheel \n",
+ "alpha_B_b=alpha_B*r_B #m/s**2\n",
+ "\n",
+ "#Acceleration of A with respect to B\n",
+ "a_A_B=-(round(alpha_B_b,2)-round(alpha_A_a,2))\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration of A with respect to B\",a_A_B,\"m/s**2\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration of A with respect to B 0.19 m/s**2\n"
+ ]
+ }
+ ],
+ "prompt_number": 43
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.39,Page No.589"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=5 #N #Weight suspended by arope\n",
+ "W_o=50 #N #Weight of pulley\n",
+ "R=0.3 #m #Radius of pulley\n",
+ "g=9.81 #m/s**2\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration\n",
+ "a=g*W*(W+W_o*2**-1)**-1 #m/s**2\n",
+ "\n",
+ "#Tension in the string\n",
+ "T=W*W_o*(2*W+W_o)**-1 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration is\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension in the string is\",round(T,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration is 1.64 m/s**2\n",
+ "Tension in the string is 4.17 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 44
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.40,Page No.590"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W1=100 #N #bigger Weight\n",
+ "W2=40 #N #Smaller Weight\n",
+ "W_o=50 #N #Weight of pulley\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Acceleration \n",
+ "a=g*(W1-W2)*(W1+W2+W_o*2**-1)**-1 #m/s**2\n",
+ "\n",
+ "#TEnsion T1\n",
+ "T1=W1*(2*W2+W_o*2**-1)*(W1+W2+W_o*2**-1)**-1 #N\n",
+ "\n",
+ "#Tension T2\n",
+ "T2=W2*(2*W1+W_o*2**-1)*(W1+W2+W_o*2**-1)**-1 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration of block is\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension T1\",round(T1,2),\"N\"\n",
+ "print\"Tension T2\",round(T2,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration of block is 3.57 m/s**2\n",
+ "Tension T1 63.64 N\n",
+ "Tension T2 54.55 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 45
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.41,Page No.591"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W=2940 #N #Weight of cage\n",
+ "D=1.20 #m #Diameter of drum\n",
+ "R=0.6 #m #Radius of drum\n",
+ "W_o=735 #N #Weight of drum\n",
+ "k=0.55 #m #Radius of gyration\n",
+ "T1=4000 #N*m #Constant Torque Exerted by motor\n",
+ "g=9.8 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "\n",
+ "#Mass of the cage\n",
+ "M=W*g**-1 #Kg\n",
+ "\n",
+ "#Net Force\n",
+ "#(P-W)=M*a ........................1\n",
+ "\n",
+ "#M.I of Drum\n",
+ "I=W_o*g**-1*k**2 \n",
+ "\n",
+ "#Torque on Drum\n",
+ "#(T1-R*P)=I*alpha ..................(2)\n",
+ "\n",
+ "#Angular Acceleration\n",
+ "#alpha=(a*R**-1)\n",
+ "\n",
+ "#Sub value of I and alpha in equation 2 we get\n",
+ "#(4000-0.6*P)=37.8125*a ...................3\n",
+ "\n",
+ "#After multipliying equation 1 by R we get\n",
+ "#(R*P-R*W)=R*M*a .............................4\n",
+ "\n",
+ "#Adding equations 3 and 4 we get equation as\n",
+ "#(4000-0.6*2940)=37.8125*a+0.6*300*a\n",
+ "#AFter further simplifying we get\n",
+ "a=2236*(217.8125)**-1 #m/s**2 #Acceleration\n",
+ "\n",
+ "#Sub value of a in equation 1 \n",
+ "P=M*a+W #N\n",
+ "\n",
+ "#PArt-2\n",
+ "#Time Required to raise the cage 20 m from ground\n",
+ "\n",
+ "u=0 #m/s #Initial Velocity\n",
+ "a=10.265 #m/s**2 #acceleraation\n",
+ "s=20 #m #Height from ground\n",
+ "\n",
+ "#time required\n",
+ "t=((2*s)*a**-1)**0.5 #s\n",
+ "\n",
+ "#Result\n",
+ "print\"Acceleration of the cage is\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension in the cage is\",round(P,2),\"N\"\n",
+ "print\"Time required to raise the cage 20 m from ground\",round(t,2),\"s\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Acceleration of the cage is 10.27 m/s**2\n",
+ "Tension in the cage is 6019.71 N\n",
+ "Time required to raise the cage 20 m from ground 1.97 s\n"
+ ]
+ }
+ ],
+ "prompt_number": 46
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.42,Page No.593"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W_o=100 #N #Weight of cyclinder\n",
+ "W=10 #N #Weight of block\n",
+ "D=1 #m #diameter of cyclinder\n",
+ "R=0.5 #m #Radius of cyclinder\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Mass of block\n",
+ "M=W*g**-1 #Kg\n",
+ "\n",
+ "#Net Force\n",
+ "#(W-P)=W1*g**-1*alpha .........................1\n",
+ "\n",
+ "#M.I\n",
+ "I=M*R**2*2**-1 #kgm**2\n",
+ "\n",
+ "#Torque equation\n",
+ "#T=I*alpha \n",
+ "\n",
+ "#Multiplying equation of net force with 2 we get\n",
+ "#P=25*g**-1*alpha ..............................2\n",
+ "\n",
+ "#Adding equations 1 and 2 we get\n",
+ "alpha=W*3.06**-1 #rad/s**2\n",
+ "\n",
+ "#Initial velocity\n",
+ "u=0 #m/s\n",
+ "t=2 #sec #time\n",
+ "\n",
+ "#Angular acceleration \n",
+ "alpha=3.268 #rad/s**2\n",
+ "\n",
+ "#Angular Velocity\n",
+ "u_o=u+alpha*t\n",
+ "\n",
+ "#Result\n",
+ "print\"Angular Velocity after 2 seconds is\",round(u_o,2),\"m/s**2\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Angular Velocity after 2 seconds is 6.54 m/s**2\n"
+ ]
+ }
+ ],
+ "prompt_number": 47
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.43,Page No.595"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "W1=100 #N #Weight of Block\n",
+ "W2=300 #N #weight of pulley\n",
+ "k=0.25 #m #Radius of gyration\n",
+ "r_A=0.2 #m #Radius of pulley A\n",
+ "r_B=0.3 #m #Radius of pulley B\n",
+ "g=9.81 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Motion of block B\n",
+ "#(W1-T_B)=W1*g**-1*r_B*alpha ..................1\n",
+ "\n",
+ "#Motion of block A\n",
+ "#(T_A-W1)=W1*g**-1*r_A*alpha ..................2\n",
+ "\n",
+ "#M.I of pulley\n",
+ "I=W2*g**-1*k**2\n",
+ "\n",
+ "#Rotation of pulley\n",
+ "#T_B*r_B-T_A*r_A=I*alpha .....................3\n",
+ "\n",
+ "#After multiplying equation 1 by r_B we get\n",
+ "#30-r_B*T_B=W1*g**-1*r_B*alpha ..................4 \n",
+ "\n",
+ "#After multiplying equation 2 by r_A we get\n",
+ "#0.2*T_A-20=W1*g**-1*r_A*alpha ..................5\n",
+ "\n",
+ "#Adding equations 3,4,5 and further simplifying we get\n",
+ "alpha=10*g*31.75**-1 #Rad/s**2\n",
+ "\n",
+ "#Linear acceleration of pulley\n",
+ "alpha_B=0.3*alpha #m/s**2\n",
+ "alpha_A=0.2*alpha #m/s**2 \n",
+ "\n",
+ "#Tension in strings\n",
+ "T_A=W1+W1*g**-1*alpha_A #N\n",
+ "T_B=W1-W1*g**-1*alpha_B #N\n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Angular Acceleration of pulley\",round(alpha,2),\"rad/s**2\"\n",
+ "print\"Linear acceleration of blocks A and B:alpha_A\",round(alpha_A,2),\"rad/s**2\"\n",
+ "print\" :alpha_B\",round(alpha_B,2),\"rad/s**2\"\n",
+ "print\"Tension in the strings\",round(T_A,2),\"N\"\n",
+ "print\" \",round(T_B,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Angular Acceleration of pulley 3.09 rad/s**2\n",
+ "Linear acceleration of blocks A and B:alpha_A 0.62 rad/s**2\n",
+ " :alpha_B 0.93 rad/s**2\n",
+ "Tension in the strings 106.3 N\n",
+ " 90.55 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 15.44,Page No.598"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "#Weights\n",
+ "W1=200 #N\n",
+ "W2=800 #N\n",
+ "\n",
+ "F=400 #N #Force applied\n",
+ "mu=0.3 #Coefficient of friction\n",
+ "g=9.80 #m/s**2 #Acceleration due to gravity\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "#Total Weights\n",
+ "W=W1+W2 #N\n",
+ "\n",
+ "#Total Mass \n",
+ "M=W*g**-1 #Kg\n",
+ "\n",
+ "#Force of friction\n",
+ "F2=mu*W #N\n",
+ "\n",
+ "#acceleration\n",
+ "a=-((-F+F2)*g)*W**-1 #m/s**2 \n",
+ "\n",
+ "#PArt-2\n",
+ "\n",
+ "#Force of Friction\n",
+ "F3=mu*W1 #N\n",
+ "\n",
+ "#Reverse Effective Force on it\n",
+ "F4=W1*g**-1*a #N\n",
+ "\n",
+ "#Tension in thread\n",
+ "T=F3+F4 #N\n",
+ "\n",
+ "#Result\n",
+ "print\"acceleration of the weights is\",round(a,2),\"m/s**2\"\n",
+ "print\"Tension in the string is\",round(T,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "acceleration of the weights is 0.98 m/s**2\n",
+ "Tension in the string is 80.0 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 48
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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