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 "cells": [
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# CHAPTER 1:INTRODUCTION TO FLUID STATICS"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## SAMPLE PROBLEM 1/1,PAGE NUMBER:19"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "The weight of a car in newton,W= 13734.0 N\n",
      "The mass of the car in slugs,m= 95.9 slugs\n",
      "The weight of the car in pounds,W= 3089.0 lb(roundoff error)\n",
      "The mass of the car in lbm,m= 3086.0 lbm(roundoff error)\n"
     ]
    }
   ],
   "source": [
    "import math\n",
    "\n",
    "#Variable Declaration\n",
    "m=1400; # Mass of car in kg\n",
    "\n",
    "#Calculation\n",
    "g=9.81; # The acceleration due to gravity in m/s^2\n",
    "W_1=m*g;# Weight in N\n",
    "m_1=m/14.594;# Mass of the car in slugs (1slug=14.594kg)\n",
    "g=32.2; # The acceleration due to gravity in ft/s^2\n",
    "W_2=m_1*g;# Weight in pounds (lb)\n",
    "m_2=m/0.45359; #Mass of the car in lbm\n",
    "print \"The weight of a car in newton,W=\",round(W_1,0),\"N\"\n",
    "print \"The mass of the car in slugs,m=\",round(m_1,1),\"slugs\"\n",
    "print \"The weight of the car in pounds,W=\",round(W_2,0),\"lb\"\"(roundoff error)\"\n",
    "print \"The mass of the car in lbm,m=\",round(m_2,0),\"lbm\"\"(roundoff error)\"\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "##  SAMPLE PROBLEM 1/2,PAGE NUMBER:19"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "The weight of a person by using Newton's Law of gravitation,W= 688.0 N\n",
      "The weight of a person standing on the surface of the earth,W= 687.0 N\n"
     ]
    }
   ],
   "source": [
    "import math\n",
    "\n",
    "#Variable Declaration\n",
    "G=6.673* 10**-11;# m^3/(kg.s^2)\n",
    "m_e=5.976* 10**24;# kg\n",
    "R=6371*10**3;# m\n",
    "m=70;# kg\n",
    "g=9.81;# m/s^2\n",
    "\n",
    "#Calculation\n",
    "W_n=(G*m_e*m)/R**2;# N\n",
    "W=m*g;# N\n",
    "print\"The weight of a person by using Newton's Law of gravitation,W=\",round(W_n,0),\"N\"\n",
    "print\"The weight of a person standing on the surface of the earth,W=\",round(W,0),\"N\"\n"
   ]
  }
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