Question

Which of the following objects is not at rest with respect to the Earth?

• A. An aeroplane standing at the airport
• B. A bird sitting on the tree
• C. A book kept on the table
• D. A train running on the track

Answer 1

The correct option is D

A train running on the track

Correct option is D: A train running on the track

Explanation:

1. Among all, only a train running on the track is not in the rest with respect to Earth.
2. Train moves in a straight line, so train is in rectilinear motion.
3. All other objects bird, book and aero plane are in rest position with respect to the earth.

Hence, Option D is correct.