Question

When work is said to be done?​

Answer 1

Answer:

Work is said to be done when a force moves an object through a distance in its own direction.

Explanation:

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Answer 2

Explanation:

Work is said to be done only when the applied force causes a change in the position of  the object in the direction of the applied force. For example, when we push a table and it  moves in the direction of applied force, then work is done. On the other hand, if we push a  wall with the force we have and there is no change in its position then, no work is said to be  done.