Question

What do you mean by zero work done give any two examples where work done is zero?

Answer 1

Answer:

What are three conditions when work done is said to be zero?

Explanation:

Work is said to be done when applied force provides displacement for a body. If there is no displacement for the body after the force is applied then work done is zero. Another case is if the motion is perpendicular to the force then work done a zero.