Question

Why do we say that rest and motion are relative terms?​

Answer 1

Answer:

Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body.

Answer 2

Answer:

rest and motion are relative terms as there is no object in the universe present which is at absolute rest or absolute motion

when a body appears to be at rest to someone it might be possible that it appear to be in motion to some other person at the same time

For ex:- a man sitting in a moving train is at rest with respect to the passenger sitting with him in the train whereas the man is moving along the with the train to those who are waiting on the station