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One end of massless inextensible string ...

One end of massless inextensible string of length `l` is fixed and other end is tied to a small ball of mass `m`. The ball is performing a circular motion in vertical plane. At the lowest position, speed of ball is `sqrt(20gl)`. Neglect any other forces on the ball except tension and gravitational force. Acceleration due to gravity is `g`.
Motion of ball is in nature of

A

circular motion with constant speed

B

circular motion with variable speed

C

circular motion with constant angular acceleration about centre of the circle.

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
As speed of ball is variable, so motion is non uniform circular motion.
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