Question

What is work done?give example...

Answer 1

Answer:

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Explanation:

The SI unit of work is joule (J), which is defined as the work done by a force of 1 Newton in moving an object through a distance of 1 metre in the direction of the force. A weightlifter lifts a barbell weighing 25 kg and displaces it from the ground by 2 m. Here, the work done upon the barbell is against gravity.

Answer 2

Answer:

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The product of the force and displacement is called work done.

Example.

book falls off a table and free falls to the ground. This is an example of work. There is a force (gravity) which acts on the book which causes it to be displaced in a downward direction (i.e., "fall")