Question

Which of the following is in motion with respect to a person sitting in a moving train?

• A. Seats of the train
• B. Light bulb of the train
• C. Windows of the train
• D. Trees outside the train

Answer 1

The correct option is D Trees outside the train

• An object is in motion or at rest depending on the person observing it.
• The train and all of its parts are at rest with respect to the person, as he is also a part of the train. However, the trees outside are in motion with respect to him.