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Ex 2) A horizontal force of 70 N keeps a desk (30 kg) moving at a constant velocity. a) What is the coefficient of kinetic
Ex 2) A horizontal force of 70 N keeps a desk (30 kg) moving at a constant velocity.
a) What is the coefficient of kinetic friction?
b) If a friend helps moving the desk by exerting a force of 100 N up, what horizontal force would be needed to keep the desk moving at a constant velocity?
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