// Calculations W_actual=1360 //N //Load lifted P_actual=100 //N // Effort n=4 // no of pulleys // Calculations // for 1st system of pulleys having 4 movable pulleys, Velocity ratio is V.R=2^(n) // Velocity Ratio // If the machine were to be ideal(frictionless) M.A=V.R // Here, M.A= mechanical advantage // For a load of 1360 N, ideal effort required is P_ideal=W_actual/V.R //N // Effort loss in friction is, P_friction=P_actual-P_ideal //N // For a effort of 100 N, ideal load lifted is, W_ideal=V.R*100 //N // Load lost in friction is, W_friction=W_ideal-W_actual // N // Results clc printf('(a) The effort wasted in friction is %f N \n',P_friction) printf('(b) The load wasted in friction is %f N \n',W_friction)