A 400-kg piano slides 36 m down a 28 degree incline and is
A 400-kg piano slides 3.6 m down a 28 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline.
Determine the force exerted by the man and the work done on the piano by the man.
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a 400-kg piano slides 36 m down a 28 degree incline and is kept from accelerating by a man who is pushing back on it
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