Question

A man standing for the whole day holding a heavy bag in his hand does not do any work . GIVE REASON​

Answer 1

When a person is standing in a place holding a suitcase, then no work will be done because, work done = force × displacement.

So, here force acts perpendicular and no displacement because person doesn't move, So work done will be 0.

If he is moving holding a suitcase then the work will be done.