1 files changed, 25 insertions, 0 deletions
diff --git a/1205/CH8/EX8.4/S_8_4.sce b/1205/CH8/EX8.4/S_8_4.sce
new file mode 100644
index 000000000..781361eaa
--- /dev/null
+++ b/1205/CH8/EX8.4/S_8_4.sce
@@ -0,0 +1,25 @@
+clc;
+
+F=2000;//N, force exerte
+us=0.35;// Coeffiecient of static friction
+phi=atan(us);//rad, angle of friction
+theta=8;//degree, angle of inclination
+theta=theta*%pi/180;//rad, Conversion into radian
+
+//Using sine rule
+//force p to raise block
+//free body , block B
+R1=F/sin(%pi/2-2*phi-theta)*sin(%pi/2+phi);//N, 
+//free body wedge A
+P=R1*sin(2*phi+theta)/sin(%pi/2-phi);//N, 
+printf(" force required to raise block is P=%.0f\n",P);
+
+//force to lower block
+//free body , block B
+R1=F*sin(%pi/2-phi)/sin(%pi/2+theta);//N, 
+//free body wedge A
+P=R1*sin(2*phi-theta)/sin(%pi/2-phi);//N, 
+printf(" force required to lower block is P=%.0f\n",P);
+
+
+