A block of mass m = 2 kg is moved slowly from bottom to top of the hill as shown with the tangential force F. If the coefficient of friction between block and hill is 0.5 , then work done by the force

Question

A block of mass m = 2 kg is moved slowly from bottom to top of the hill as shown with the tangential force F. If the coefficient of friction between block and hill is 0.5 , then work done by the force will be :-

TestHub · Accepted Answer

W F ​ + W f r ​ + W g ​ = Δ K E W F ​ + μ m g h − m g h = 0 − 0 W F ​ = m g h + 2 m g h ​ = 2 3 ​ m g h

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