Question

A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 156 N at an angle of 27.0° above the horizontal. The box has a mass of 20.0 kg, and the coefficient of kinetic friction between box and floor is 0.300.

(a) Find the acceleration of the box. ____m/s2

(b) The student now starts moving the box up a 10.0° incline, keeping her 156 N force directed at 27.0° above the line of the incline. If the coefficient of friction is unchanged, what is the new acceleration of the box? _____m/s2, up the incline

Answer #1

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