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Can an object be at rest and in motion at the same time? Give example.
Rest and motion depend on the frame of reference.
A body can be at rest in one frame but the same body will be in motion in another frame.
Suppose you are traveling in a car with a friend. Your friend is at rest in your observation frame, but the same person is moving with respect to a person standing on the ground. So your friend is at rest or in motion depending on the frame of reference.
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