Answer Happy

A. calculate the force exerted by the man.B.Calculate the work done by the man on the piano.C.Calculate the work done by the friction force.D.Calculate the work done by the force of gravityE.Calculate the net work done on the piano
A 330 kg piano slides 3.8 m down a 34∘ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure(Figure 1)). The effective coefficient of kinetic friction is 0.35. Figure 1 of 1