A 100N force is applied on a box, but the box does not move because of the large

Question

A 100N force is applied on a box, but the box does not move because of the large friction with the ground. Which of the following is correct? (A) The 100N does work on the micro-structure of the box, so the work done is calculated by adding up all the individual movements of the box's atoms. (B) There is no work done because the box does not move. (C) The work done is calculated as if friction was not present. (D) Although the box does not move, the 100N contributes to the Earth's rotation, so work has been done to the Earth-box system as a whole.

Explanation / Answer

The work done is product of force applied on the box and displacement of box. But the box is not moving because of the large friction between box and ground. That is why workdone will be zero because of zero displacement.

Hence the option (B) There is no work done because the box does not move is the correct answer.

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