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Physics 8 Online
OpenStudy (anonymous):

An 18.7 kg block is dragged over a rough, horizontal surface by a constant force of 167 N acting at an angle of angle 33.3 ◦ above the horizontal. The block is displaced 34 m and the coefficient of kinetic friction is 0.229. Find the magnitude of the work done by the force of friction/

OpenStudy (ookawaiioo):

N = mass*gravity*cos33.3 plug in N into: Work = (0.229uk)*N*34sin33.3

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