Question

A body is revolving with a constant speed along a circle. If its direction of motion is reversed but the speed remains the same, then which of the following statement is true

• A. The centripetal force will not suffer any change in magnitude
• B. The centripetal force will have its direction reversed
• C. The centripetal force will not suffer any change in direction
• D. The centripetal force would be doubled

Answer 1

Answer: (A), (C)

The correct options are
A

The centripetal force will not suffer any change in magnitude

C

The centripetal force will not suffer any change in direction

Centripetal force = $\frac{m{v}^2}{r}$ and is directed always towards the centre of circle. Sense of rotation does not affect magnitude and direction of this centripetal force.