Question

A particle moving with uniform speed in a circular path maintains :

• A. Constant velocity
• B. Constant acceleration
• C. Constant velocity but varying acceleration
• D. Varying velocity and varying acceleration

Answer 1

The Correct Option is D

In circular motion, the direction of velocity changes continuously, causing varying acceleration despite uniform speed.

Answer 2

Step 1: Analyze Velocity in Circular Motion 

In uniform circular motion, the speed remains constant, but the direction of velocity continuously changes. This means that the velocity vector is not constant.

Step 2: Analyze Acceleration in Circular Motion

Acceleration in circular motion consists of two components:

• Centripetal acceleration, which is always directed toward the center.
• Tangential acceleration, which is zero for uniform circular motion.

Since velocity is changing direction, the particle experiences varying acceleration.