A 295 kg piano slides 4.2 m down a 30 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective…

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A 295 kg piano slides 4.2 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40.Calculate the force exerted by the man.

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