Question

Can normal force do nonzero work on an object? If yes, give an example. If no, give reason.

Answer 1

Explanation:

Yes, the Normal Force can do the non-zero work on the Object. When the Person is moving to the top from the Elevator, i.e. against the force of the gravity, the work done by the normal reaction force is negative. Negative work is also non-zero work since its magnitude is non the zero.

Answer 2

Yes, the Normal Force can do the non-zero work on the Object.

Explanation:

At the point when the Person is moving to the top from the Elevator.

For example, against the power of the gravity, the work done by the ordinary response power is negative.  

Negative work is additionally non-zero work since its greatness is non zero.

Likewise, When the Person is descending from the Elevator, i.e. toward the power of the gravity, the work done by the ordinary power is sure.  

Positive work is additionally the non-zero work since its extent is non zero.  

Subsequently, the typical power can do the non-zero (Positive or Negative) work.