A 400kg piano slides 4.0 m down a 30 degree incline and is, Ask an Expert

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A 400kg piano slides 4.0 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline.

A. Find out the force exerted by the man.

B. Find out the work done by the man on the piano.

C. Find out the work done by the force of gravity.

D. Find out the net work done on the piano. Ignore friction.

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Category:- Physics
Reference No.:- M9399809

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