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diff --git a/3886/CH5/EX5.6/5_6.sce b/3886/CH5/EX5.6/5_6.sce
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+//force required to prevent slipping
+//refer fig. 5.10
+mu=0.25
+//assumptions are made and shown in fig.5.10
+//F1=mu*N1
+//consider equilibrium of block A
+C1=(2000)/((0.25*cosd(30))+(0.5))  //N
+N1=C1*cosd(30)
+//Lami's theorem at joint O gives
+P=(C1*sind(90))/sind(120)  //N
+C=(C1*sind(150))/sind(120)  //N
+//Consider equilibrium of block B for verification
+//F2=C2*cosd(60)  N
+//N2=2000+C2*sind(60)  N
+//LF=mu*N2  N  (limiting friction)
+//actual frictional force F2 developed is less than the limiting frictional force hence block B is stationary
+//P is the correct answer
+printf("Requiref force is\nP=%0.2f N",P)
+