Question

For a particle performing uniform circular motion, choose the incorrect statement from the following.

• A. Magnitude of particle velocity (speed) remains constant.
• B. Particle velocity remains directed perpendicular to radius vector.
• C. Direction of acceleration keeps changing as particle moves.
• D. Magnitude of acceleration does not remain constant.

Answer 1

The correct option is D Magnitude of acceleration does not remain constant.

If a particle is performing uniform circular motion then,

1) Its speed remains constant throughout the motion.

2)Tangential acceleration is always zero.

3)The magnitude of the radial acceleration is constant always.

The magnitude of acceleration remains constant all through the uniform circular motion.

So, the correct option is D