Question
Physics Question on work, energy and power
When a body moves with a constant speed along a circle
A
no work is done on it
B
no acceleration is produced in it
C
its velocity remains constant
D
no force acts on it
Answer
no work is done on it
Explanation
Solution
If the speed is constant then no force is acting in tangential direction. Only force acting is perpendicular to direction of velocity. Hence, work done will be zero.