A body having a mass of 50.97 kg is pulled along a horizontal flat surface at a constant speed by a force of 180 N, which makes an angle of +30° with the horizontal. Find the coefficient of kinetic friction for the surfaces.

A body having a mass of 50.97 kg is pulled along a horizontal flat surface at a constant speed by a force of 180 N, which makes an angle of +30° with the horizontal. Find the coefficient of kinetic friction for the surfaces.



A. 0.311

B. 1.441 N

C. 0.896

D. 0.38 N

E. 0.38


Answer: E


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