Question

A man has been gurdaing a house for 1 hour why is it not considered work in science ?

Answer 1

Explanation:

So, work done sin a, where a is the angle between force and displacement. In this particular case, though the guard was guarding the gate for one hour, he has not done any displacement towards any direction. So, the work done comes out as zero.

Answer 2

Explanation:

So, work done sin a, where a is the angle between force and displacement. In this particular case, though the guard was guarding the gate for one hour, he has not done any displacement towards any direction. So, the work done comes out as zero.