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-rw-r--r--3648/CH8/EX8.1/Ex8_1.sce13
-rw-r--r--3648/CH8/EX8.1/Ex8_1.txt3
-rw-r--r--3648/CH8/EX8.2/Ex8_2.sce12
-rw-r--r--3648/CH8/EX8.2/Ex8_2.txt1
-rw-r--r--3648/CH8/EX8.3/Ex8_3.sce19
-rw-r--r--3648/CH8/EX8.3/Ex8_3.txt3
-rw-r--r--3648/CH8/EX8.4/Ex8_4.sce15
-rw-r--r--3648/CH8/EX8.4/Ex8_4.txt2
-rw-r--r--3648/CH8/EX8.5/Ex8_5.sce12
-rw-r--r--3648/CH8/EX8.5/Ex8_5.txt1
-rw-r--r--3648/CH8/EX8.6/Ex8_6.sce7
-rw-r--r--3648/CH8/EX8.6/Ex8_6.txt1
-rw-r--r--3648/CH8/EX8.7/Ex8_7.sce7
-rw-r--r--3648/CH8/EX8.7/Ex8_7.txt1
-rw-r--r--3648/CH8/EX8.8/Ex8_8.sce12
-rw-r--r--3648/CH8/EX8.8/Ex8_8.txt3
-rw-r--r--3648/CH8/EX8.9/Ex8_9.sce11
-rw-r--r--3648/CH8/EX8.9/Ex8_9.txt1
18 files changed, 124 insertions, 0 deletions
diff --git a/3648/CH8/EX8.1/Ex8_1.sce b/3648/CH8/EX8.1/Ex8_1.sce
new file mode 100644
index 000000000..5394e5d39
--- /dev/null
+++ b/3648/CH8/EX8.1/Ex8_1.sce
@@ -0,0 +1,13 @@
+//Example 8_1
+clc();
+clear;
+//To find the rotational kinetic energy
+m=5.98*10^24 //units in Kg
+r=6.37*10^6 //units in meters
+I=(2/5)*m*r^2 //units in Kg meter^2
+t=86400 //units in sec
+w=(2*%pi)/(t) //units in rad/sec
+KE=0.5*(I*w^2) //units in joules
+printf("The rotational kinetic energy is KE=")
+disp(KE)
+printf("Joules")
diff --git a/3648/CH8/EX8.1/Ex8_1.txt b/3648/CH8/EX8.1/Ex8_1.txt
new file mode 100644
index 000000000..9a86b6f2e
--- /dev/null
+++ b/3648/CH8/EX8.1/Ex8_1.txt
@@ -0,0 +1,3 @@
+The rotational kinetic energy is KE=
+ 2.567D+29
+Joules \ No newline at end of file
diff --git a/3648/CH8/EX8.2/Ex8_2.sce b/3648/CH8/EX8.2/Ex8_2.sce
new file mode 100644
index 000000000..f38ee1118
--- /dev/null
+++ b/3648/CH8/EX8.2/Ex8_2.sce
@@ -0,0 +1,12 @@
+//Example 8_2
+clc();
+clear;
+//To find the angular acceleration of the wheel
+m=30 //units in Kg
+k=0.25 //units in meters
+I=m*k^2 //units in Kg meter^2
+force=1.8 //units in Newtons
+levelarm=0.40 //nits in meters
+tou=force*levelarm //units in Newton meter
+alpha=tou/I //units in rad/sec^2
+printf("Angular acceleration is alpha=%.3f rad/sec^2",alpha)
diff --git a/3648/CH8/EX8.2/Ex8_2.txt b/3648/CH8/EX8.2/Ex8_2.txt
new file mode 100644
index 000000000..8f53a6030
--- /dev/null
+++ b/3648/CH8/EX8.2/Ex8_2.txt
@@ -0,0 +1 @@
+Angular acceleration is alpha=0.384 rad/sec^2 \ No newline at end of file
diff --git a/3648/CH8/EX8.3/Ex8_3.sce b/3648/CH8/EX8.3/Ex8_3.sce
new file mode 100644
index 000000000..978874ec5
--- /dev/null
+++ b/3648/CH8/EX8.3/Ex8_3.sce
@@ -0,0 +1,19 @@
+//Example 8_3
+clc();
+clear;
+//To find out how long does it take to accelerate and how far does wheel turn in this time and the rotational kinetic energy
+force=8 //units in Newtons
+arm=0.25 //units in meters
+tou=force*arm //units in Newton meter
+m=80 //units in Kg
+b=arm //units in meters
+I=0.5*m*b^2 //units in Kg meter^2
+alpha=tou/I //units in rad/sec^2
+wf=4*%pi //units in rad/sec
+w0=0 //units in rad/sec
+t=(wf-w0)/alpha //units in sec
+printf("The time taken is t=%.1f sec\n",t)
+theta=0.5*(wf+w0)*t //units in radians
+printf("The wheel goes a distance of theta=%.1f rad\n",theta)
+KE=0.5*I*wf^2 //units in Joules
+printf("The rotational kinetic energy is KE=%d Joules",KE)
diff --git a/3648/CH8/EX8.3/Ex8_3.txt b/3648/CH8/EX8.3/Ex8_3.txt
new file mode 100644
index 000000000..9bea29086
--- /dev/null
+++ b/3648/CH8/EX8.3/Ex8_3.txt
@@ -0,0 +1,3 @@
+The time taken is t=15.7 sec
+The wheel goes a distance of theta=98.7 rad
+The rotational kinetic energy is KE=197 Joules \ No newline at end of file
diff --git a/3648/CH8/EX8.4/Ex8_4.sce b/3648/CH8/EX8.4/Ex8_4.sce
new file mode 100644
index 000000000..6846e4eb3
--- /dev/null
+++ b/3648/CH8/EX8.4/Ex8_4.sce
@@ -0,0 +1,15 @@
+//Example 8_4
+clc();
+clear;
+//To find out the angular acceleration and the distance the object falls
+f1=29.4 //units in Newtons
+r1=0.75 //units in meters
+m1=40 //units in Kgs
+r2=0.6 //units in meters
+m2=3 //units in Kgs
+alpha=(f1*r1)/((m1*r2^2)+(m2*r1^2)) //units in rad/sec^2
+printf("The angular acceleration is alpha=%.2f rad/sec^2\n",alpha)
+a=r1*alpha //units in meters/sec^2
+t=10 //units in sec
+y=0.5*a*t^2 //units in meters
+printf("The objects goes a distance of y=%.1f meters",y)
diff --git a/3648/CH8/EX8.4/Ex8_4.txt b/3648/CH8/EX8.4/Ex8_4.txt
new file mode 100644
index 000000000..c7bc92a3f
--- /dev/null
+++ b/3648/CH8/EX8.4/Ex8_4.txt
@@ -0,0 +1,2 @@
+The angular acceleration is alpha=1.37 rad/sec^2
+The objects goes a distance of y=51.4 meters \ No newline at end of file
diff --git a/3648/CH8/EX8.5/Ex8_5.sce b/3648/CH8/EX8.5/Ex8_5.sce
new file mode 100644
index 000000000..25c3807cc
--- /dev/null
+++ b/3648/CH8/EX8.5/Ex8_5.sce
@@ -0,0 +1,12 @@
+//Example 8_5
+clc();
+clear;
+//To find the speed of the object
+m=3 //units in Kg
+g=9.8 //units in meters/sec^2
+h=0.80 //units in meters
+m1=3 //units in Kg
+m2=14.4 //units in Kg
+r=0.75 //units in meters
+v=sqrt((m*g*h)/((0.5*m1)+((0.5*m2)/r^2)))
+printf("The object is moving at v=%.2f meters/sec",v)
diff --git a/3648/CH8/EX8.5/Ex8_5.txt b/3648/CH8/EX8.5/Ex8_5.txt
new file mode 100644
index 000000000..d90c65ae0
--- /dev/null
+++ b/3648/CH8/EX8.5/Ex8_5.txt
@@ -0,0 +1 @@
+The object is moving at v=1.28 meters/sec \ No newline at end of file
diff --git a/3648/CH8/EX8.6/Ex8_6.sce b/3648/CH8/EX8.6/Ex8_6.sce
new file mode 100644
index 000000000..791bd51d3
--- /dev/null
+++ b/3648/CH8/EX8.6/Ex8_6.sce
@@ -0,0 +1,7 @@
+//Example 8_6
+clc();
+clear;
+//To find out how fast is the sphere moving when it reaches the bottom
+//We know that 0.5*m*(vf^2-v0^2)+0.5*I*(wf^2-w0^2)+m*g*(hf-h0)=0
+//And v0=w0=0 and I=(2/5)*m*r^2
+printf("The sphere is moving at a speed of Vf=sqrt((10*g*h)/7)")
diff --git a/3648/CH8/EX8.6/Ex8_6.txt b/3648/CH8/EX8.6/Ex8_6.txt
new file mode 100644
index 000000000..8ad85ef1d
--- /dev/null
+++ b/3648/CH8/EX8.6/Ex8_6.txt
@@ -0,0 +1 @@
+The sphere is moving at a speed of Vf=sqrt((10*g*h)/7) \ No newline at end of file
diff --git a/3648/CH8/EX8.7/Ex8_7.sce b/3648/CH8/EX8.7/Ex8_7.sce
new file mode 100644
index 000000000..30e78d30e
--- /dev/null
+++ b/3648/CH8/EX8.7/Ex8_7.sce
@@ -0,0 +1,7 @@
+//Example 8_7
+clc();
+clear;
+//To find the ratio of perihelion to that at aphelion
+//We know that (Ip*Wp)=(Ia*Wa) as I=m*r^2
+//(Wp/Wa)=(ra/rp)^2 as Vt=w*r
+printf("The ratio of perihelion to that at aphelion is (Vp/Va)=(ra/rp)")
diff --git a/3648/CH8/EX8.7/Ex8_7.txt b/3648/CH8/EX8.7/Ex8_7.txt
new file mode 100644
index 000000000..537ed664b
--- /dev/null
+++ b/3648/CH8/EX8.7/Ex8_7.txt
@@ -0,0 +1 @@
+The ratio of perihelion to that at aphelion is (Vp/Va)=(ra/rp) \ No newline at end of file
diff --git a/3648/CH8/EX8.8/Ex8_8.sce b/3648/CH8/EX8.8/Ex8_8.sce
new file mode 100644
index 000000000..ddadbe7c7
--- /dev/null
+++ b/3648/CH8/EX8.8/Ex8_8.sce
@@ -0,0 +1,12 @@
+//Example 8_8
+clc();
+clear;
+//To find out how long does the sun take to complete one revolution
+ra_rb=10^5
+noofrev=1/25 //units in rev/day
+wafter=(ra_rb)^2*(noofrev)
+t=86400 //units in sec
+time=t/wafter //units in sec
+printf("The sun would take for one revolution in time=")
+disp(time)
+printf("sec")
diff --git a/3648/CH8/EX8.8/Ex8_8.txt b/3648/CH8/EX8.8/Ex8_8.txt
new file mode 100644
index 000000000..390bbe660
--- /dev/null
+++ b/3648/CH8/EX8.8/Ex8_8.txt
@@ -0,0 +1,3 @@
+The sun would take for one revolution in time=
+ 0.000216
+sec \ No newline at end of file
diff --git a/3648/CH8/EX8.9/Ex8_9.sce b/3648/CH8/EX8.9/Ex8_9.sce
new file mode 100644
index 000000000..36069af91
--- /dev/null
+++ b/3648/CH8/EX8.9/Ex8_9.sce
@@ -0,0 +1,11 @@
+//Example 8_9
+clc();
+clear;
+//To find out the rotational speed
+m=0.3 //units in Kg
+r=0.035 //units in meters
+Iw=0.5*m*r^2 //units in Kg meter^2
+Ibt=8*10^-4 //units in Kg meter^2
+w0=2 //units in rev/sec
+wf=(Ibt*w0)/(Ibt+Iw) //units in rev/sec
+printf("The rotational speed is Wf=%.2f rev/sec",wf)
diff --git a/3648/CH8/EX8.9/Ex8_9.txt b/3648/CH8/EX8.9/Ex8_9.txt
new file mode 100644
index 000000000..0fbef3854
--- /dev/null
+++ b/3648/CH8/EX8.9/Ex8_9.txt
@@ -0,0 +1 @@
+ The rotational speed is Wf=1.63 rev/sec \ No newline at end of file
generated by cgit (git 2.34.1) at 2025-03-11 06:01:33 +0000