Question: You push a 6 7 - kg box across a floor where the coefficient of kinetic friction is 0 . 5 5 . The force

You push a 67-kg box across a floor where the coefficient of kinetic friction is 0.55. The force you exert is horizontal. (a) How much power is needed to push the box at a speed of 0.50 m/s?(b) How much work do you do if you push the box for 35 s?

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