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you push a 67 kg box across a floor where the co efficient of kinetic fricition...

you push a 67 kg box across a floor where the co efficient of kinetic fricition is u=0.55. The force you exert is horiZontal . a) hOW MUCH POWER IS NEEDED TO PUSH THE BOX AT A SPEED OF V=0.5M/S? B) hOW MUCH WORK DO YOU DO IF YOU PUSH THE BOX FOR TIME T=35S?

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