Question

A coin is flipped upwards by a person sitting on a moving train. Identify the types of motion does the coin undergoes with respect to the person.

• A. Rectilinear and Circular
• B. Rotational
• C. Rectilinear
• D. Rectilinear and Rotational

Answer 1

The correct option is D Rectilinear and Rotational

As long as the observer is inside the train and we flipped a coin in upward direction. The coin undergoes two types of motion.

• The coin is moving upwards and follows the straight line. Therefore, the coin has a rectilinear motion.
• The coin is also rotating about a horizontal axis. Therefore, the coin is experiencing a rotational motion while moving in the straight line.

So, a coin flipped upwards has a combined motion: Rectilinear and Rotational.