Determine the magnitude of the frictional force

Reference no: EM13309406

A box of bananas weighinh 40 N rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.50, and the coefficient of kinetic friction is 0.30. A monkey applies a horizontal force of 21 N to the box that was intially at rest, the magnitude of the frictional force is.

Reference no: EM13309406

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