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1. A 300 kg piano slides 4.7 m down a 30 degree incline and is kept...

1. A 300 kg piano slides 4.7 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parellel to the incline. The effective coefficient of kinetic friction is 0.35. Calculate the force exerted by the man.

2. A box is given a push so it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.25 and the push imparted an initial speed of 5 m/s?

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