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a man pushes horizontally on a desk that rests on a wooden floor. the coefficient of static friction between the desk and the floor is 0.750 and the...

a man pushes horizontally on a desk that rests on a wooden floor. the coefficient of static friction between the desk and the floor is 0.750 and the coefficient of kinetic friction 0.600. the desk mass is 100kg. he pushes hard enough to get the desk moving and continues pushing with that force for 5.00s. how much work does he do on the desk?

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