A horizontal force of 150 N is used to push a 42.0-kg packing crate a distance o

Mathematics
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A horizontal force of 150 N is used to push a 42.0-kg packing crate a distance of 5.30 m on a rough horizontal surface. If the crate moves at constant speed, find each of the following.
(a) the work done by the 150-N force 
 J

(b) the coefficient of kinetic friction between the crate and the surface 
May 31st, 2015

312 J......................................................

May 31st, 2015

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May 31st, 2015
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May 31st, 2015
Dec 7th, 2016
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