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+clear
+//
+W = 12000.0 //Load
+N1=2.0 //number of movable pulleys in system 1
+N2=2.0 //number of movable puleys in system 2
+VR=2*N1+2*N2 //Velocity Ratio
+L=0.05 //Efficiency loss in each pulley
+Efficiency=0.78
+MA=Efficiency*VR //Mechanical advantage
+P = W/MA //Effort
+printf("\n Effort is %0.3f N",P)