Can normal force do a nonzero work on an object? If yes, give an example. 1f no, give reason.

Work can be either positive or negative: if the force has a component in the same direction as the displacement of the object, the force is doing positive work. Do demonstrate this, Let’s us consider an elevator accelerating upward with a body placed in it.


If a person is observing this from the ground, then, for him, the normal reaction is doing a positive work, as the elevator is moving upward.


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