Question

A person sitting in a moving train is _______ with respect to co-passengers and _______ with respect to a person standing outside the train.

• A. in motion, in motion
• B. in motion, at rest
• C. at rest, at rest
• D. at rest, in motion

Answer 1

The correct option is D at rest, in motion

A person sitting in a moving train is at rest with respect to the co-passengers because the position of co-passengers are not changing with respect to the person as both are inside the moving train.

The person standing outside the moving train is in motion with respect to the person inside the train as the co-passengers inside the train are changing position with time with respect to the person outside the train.