Question

A boy is standing with the heavy load. Does he do any work ? Right with suitable
reason .

Answer 1

Answer:

No he doesn't.

Explanation:

Even though in a very casual way of observing things, we might at first feel that if a boy is standing with a heavy load, his muscles are working to support its weight, his hands are doing work in lifting it. But in a physical perspective, the boy isn't doing any work. As we know, work done comes from the dot product (vector algebra; ignore if not needed now) of Force applied (F) and displacement (s) as F.s . So, if there isn't any displacement, product will be zero, this is because anything multiplied by 0 will end up to be 0. Hence, no work is done.

There! Hope it helps you!