Question

If you hold a box with a mass of 50 kg for 5 hours, how much work have you done?

Answer 1

There is zero displacement involve in the problem. So there is zero amount of work.

Explanation:

Let us say the extra strong person is standing with both hands holding the 50 kg mass for 5 hours without any movement.

Formula for work is

Work = Force times displacement.

`W=F*d=m*g*d=50(9.8)(0)=0`

God bless....I hope the explanation is useful.