Question

Which of the following statements is correct about uniform circular motion?

• A. Force acting on the body is zero.
• B. Acceleration of the body is non-zero.
• C. Tangential acceleration is non-zero.
• D. Radial acceleration is zero.

Answer 1

Answer: (B), (C)

The correct options are
B

Acceleration of the body is non-zero.

C

Tangential acceleration is non-zero.

In uniform circular motion, the magnitude of the velocity of the body must remain constant. However, the direction of the velocity keeps changing. Hence, there is a non-zero velocity which keeps changing. Because of the constant change in the direction of the velocity of the body, there is an acceleration acting on the body, which is non-zero.