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February 28, 2015

Homework Help: Science-Physics

Posted by Erica on Sunday, January 9, 2011 at 4:54pm.

You push a 67 kg box across a floor where the coefficient of kinetic friction is uk = .55. The force you exert is horizontal. (a) How much power is needed to push the box at a speed of .50 m/s? (b) How much work do you do if you push the box for 35 s?

*please list the steps to work out this question.

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