Question

A weightlifter lifts a weight off the grounds and holds it up.

1.work done in lifting and holding the weight.

2.no work is done in both lifting and holding the weight.

3.work is done in lifting the weight but no work is required to be done in holding on it up.

4.no work is done in lifting the weight but work is required to be done in holding it up​

Answer 1

Answer:

option 1

Explanation:

work done in lifting the weight and holding the weight

Answer 2

Answer:

Option 3

Explanation:

Since while lifting it up there is force and displacement work is done

While holding it up you apply force but no displacement so no work is done