A box of mass M is pushed on a rough horizontal surface by an external force F, as shown in the figure. As the force F pushes the box a distance d = 0.4 m, the magnitude of the force of friction acting on the box is 1.3 N and the kinetic energy of the box changes from 4 J at point A to 6 J at point B. Find the work (in J) done on the box by the force F between points A and B.
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We know that the work done by a force is equal to the force multiplied by the distance moved in the direction of the force. So, we need to find the distance moved by the box in the direction of the force F between points A and B. Show more…
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