Question

If a particle is fixed on a rotating frame of reference, the fictitious force acting on the particle will be:

• A. Coriolis force only
• B. Centrifugal force only
• C. Coriolis as well as centrifugal force
• D. None of the three

Hint:

For rotating frames, always consider both **centrifugal** and **Coriolis forces**, which depend on the velocity and angular velocity of the frame.

Answer 1

The Correct Option is C

In a rotating frame of reference, two fictitious forces act on a particle: 1. Centrifugal force \( F_c = m\omega^2 r \) acts radially outward. 2. Coriolis force \( F_{cor} = -2m (\vec{\omega} \times \vec{v}) \) acts perpendicular to the velocity and rotation axis. Since both forces exist in a rotating frame, the correct answer is: