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A box with a mass of 7.01 kg is sliding along a horizontal surface at constant...

A box with a mass of 7.01 kg is sliding along a horizontal surface at constant velocity. It is pulled by a horizontal force and the coefficient of kinetic friction between the box and the surface is 0.375.

Part (a) What is the work done, in joules, by the pulling force as the box moves a distance of 0.495 m?

Part (b) What is the work done, in joules, by the force of friction 33% Part (c) What is the work done, in joules, by the net force on the box? on the box as the box moves a distance of 0.495 m?

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Answer #1

Since the velocity is constant, acceleration will be zero. Use this to find the required applied horizontal force and hence find the work done as shown below

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