initial commit / add all books

9 files changed, 157 insertions, 0 deletions

diff --git a/2084/CH8/EX8.1/8_1.sce b/2084/CH8/EX8.1/8_1.sce
new file mode 100755
index 000000000..9207760be
--- /dev/null
+++ b/2084/CH8/EX8.1/8_1.sce
@@ -0,0 +1,14 @@
+//developed in windows XP operating system 32bit

+//platform Scilab 5.4.1

+clc;clear;

+//example 8.1

+//calculation of the work done by the spring force

+

+//given data

+k=50//spring constant(in N/m) of the spring

+x=1*10^-2//compression(in m) from natural position

+

+//calculation

+W=(k*x*x)/2//work done in compressing a spring

+

+printf('the work done by the spring force is %3.1e J',W)

diff --git a/2084/CH8/EX8.11w/8_11w.sce b/2084/CH8/EX8.11w/8_11w.sce
new file mode 100755
index 000000000..03d941c3b
--- /dev/null
+++ b/2084/CH8/EX8.11w/8_11w.sce
@@ -0,0 +1,20 @@
+//developed in windows XP operating system 32bit

+//platform Scilab 5.4.1

+clc;clear;

+//example 8.11w

+//calculation of the speed of the particle at a given point

+ 

+//given data

+hA=1//height(in m) of point A

+hB=.5//height(in m) of point B

+g=10//gravitational acceleration(in m/s^2) of the earth

+

+//calculation

+//potential energies at point A and B are

+//UA = M*g*hA

+//UB = M*g*hB..............(1)

+//principle of conservation of energy

+//UA + KA = UB + KB........(2)

+vB=sqrt(2*g*(hA-hB))

+

+printf('the speed of the particle at a B point is %3.2f m/s',vB)

diff --git a/2084/CH8/EX8.12w/8_12w.sce b/2084/CH8/EX8.12w/8_12w.sce
new file mode 100755
index 000000000..777613b17
--- /dev/null
+++ b/2084/CH8/EX8.12w/8_12w.sce
@@ -0,0 +1,17 @@
+//developed in windows XP operating system 32bit

+//platform Scilab 5.4.1

+clc;clear;

+//example 8.12w

+//calculation of the maximum compression of the spring

+

+//given data

+k=400//spring constant(in N/m)

+m=40*10^-3//mass(in kg)

+h=4.9//height(in m)

+g=9.8//gravitational acceleration(in m/s^2) of the earth

+

+//calculation

+//m*g*h = (k*x*x/2)

+x=sqrt((2*m*g*h)/k)

+

+printf('the maximum compression of the spring is %3.3f m or %3.1f cm',x,x*10^2)

diff --git a/2084/CH8/EX8.1w/8_1w.sce b/2084/CH8/EX8.1w/8_1w.sce
new file mode 100755
index 000000000..d7515c16d
--- /dev/null
+++ b/2084/CH8/EX8.1w/8_1w.sce
@@ -0,0 +1,16 @@
+//developed in windows XP operating system 32bit

+//platform Scilab 5.4.1

+clc;clear;

+//example 8.1w

+//calculation of the work done by the porter on the suitcase

+

+//given data

+m=20//mass(in kg) of suitcase

+h=2//height(in m) above the platform

+g=9.8//gravitational acceleration(in m/s^2) of the earth

+

+//calculation

+W=-m*g*h//work done by gravity

+//the work done by the porter = negative of the work done by gravity

+

+printf('the work done by the porter on the suitcase is %d J',-W)

diff --git a/2084/CH8/EX8.2/8_2.sce b/2084/CH8/EX8.2/8_2.sce
new file mode 100755
index 000000000..0698dbd53
--- /dev/null
+++ b/2084/CH8/EX8.2/8_2.sce
@@ -0,0 +1,17 @@
+//developed in windows XP operating system 32bit

+//platform Scilab 5.4.1

+clc;clear;

+//example 8.2

+//calculation of the work done by force of gravity

+

+//given data

+m=20*10^-3//mass(in kg) of the particle

+u=10//speed(in m/s) of the particle

+g=9.8//gravitational acceleration(in m/s^2) of the earth

+

+//calculation

+//from equation of motion.....(v*v)=(u*u)-(2*g*h)......take v=0 we get

+h=(u*u)/(2*g)

+W=-m*g*h//law of conservation of energy

+

+printf('the work done by force by gravity is %3.1f J',W)

diff --git a/2084/CH8/EX8.2w/8_2w.sce b/2084/CH8/EX8.2w/8_2w.sce
new file mode 100755
index 000000000..48dc3caf6
--- /dev/null
+++ b/2084/CH8/EX8.2w/8_2w.sce
@@ -0,0 +1,15 @@
+//developed in windows XP operating system 32bit

+//platform Scilab 5.4.1

+clc;clear;

+//example 8.2w

+//calculation of the value of minimum horsepower of the motor to be used

+

+//given data

+m=500//mass(in kg) of the elevator

+v=.20//velocity(in m/s) of the elevator

+g=9.8//gravitational acceleration(in m/s^2) of the earth

+

+//calculation

+P=m*g*v//power = force*velocity

+

+printf('the value of minimum horsepower of the motor to be used is %3.2f hp',P/746)

diff --git a/2084/CH8/EX8.3w/8_3w.sce b/2084/CH8/EX8.3w/8_3w.sce
new file mode 100755
index 000000000..1ea2dbced
--- /dev/null
+++ b/2084/CH8/EX8.3w/8_3w.sce
@@ -0,0 +1,23 @@
+//developed in windows XP operating system 32bit

+//platform Scilab 5.4.1

+clc;clear;

+//example 8.3w

+//calculation of the power delivered by the pulling force and average power

+

+//given data

+m=2//mass(in kg)

+theta=30//angle(in degree)

+a=1//acceleration(in m/s^2) of the block

+t=4//time(in s)

+g=9.8//gravitational acceleration(in m/s^2) of the earth

+

+//calculation

+F=(m*g*sind(theta))+(m*a)//resolving the forces parallel to the incline

+v=a*t

+P=F*v//equation of power

+d=a*t*t/2//from equation of motion

+W=F*d

+pavg=W/t//average power delivered

+

+printf('the power delivered by the pulling force at t=4 s is %d W',P)

+printf('\nthe average power delivered by the pulling force between t=0 s to t=4 s is %3.1f W',pavg)

diff --git a/2084/CH8/EX8.4w/8_4w.sce b/2084/CH8/EX8.4w/8_4w.sce
new file mode 100755
index 000000000..cf0a409b1
--- /dev/null
+++ b/2084/CH8/EX8.4w/8_4w.sce
@@ -0,0 +1,17 @@
+//developed in windows XP operating system 32bit

+//platform Scilab 5.4.1

+clc;clear;

+//example 8.4w

+//calculation of the work done by the given force

+

+//given data

+function F=f(x)

+    F=(10+(.50*x))

+endfunction

+x1=0//initial position(in m) of the particle 

+x2=2//final position(in m) of the particle

+

+//calculation

+W=integrate('f','x',x1,x2)//work done

+

+printf('the work done by the given force for the given displacement is %d J',W)

diff --git a/2084/CH8/EX8.5/8_5.sce b/2084/CH8/EX8.5/8_5.sce
new file mode 100755
index 000000000..d1bfe2189
--- /dev/null
+++ b/2084/CH8/EX8.5/8_5.sce
@@ -0,0 +1,18 @@
+//developed in windows XP operating system 32bit

+//platform Scilab 5.4.1

+clc;clear;

+//example 8.5

+//calculation of the speed of the pendulum of bob when it makes an angle of 60 degree with the vertical

+

+//given data

+v0=3//speed(in m/s)of the bob in its lowest position

+theta=60//angle(in degree)made by the pendulum with vertical

+l=.5//length(in m) of the pendulum

+g=10//gravitational acceleration(in m/s^2) of the earth

+

+//calculation

+//from the law of conservation of energy

+//(m*v0*v0/2) - (m*v1*v1/2) = m*g*l*(1-cosd(theta))

+v1=sqrt((v0*v0)-(2*g*l*(1-cosd(theta))))

+

+printf('the speed of the pendulum of bob when it makes an angle of 60 degree with the vertical is %d m/s',v1)