Question
Question: A body of mass 100 g is rotating in a circular path of radius r with constant velocity. The work don...
A body of mass 100 g is rotating in a circular path of radius r with constant velocity. The work done in one complete revolution is
A
100r Joule
B
(r/100) Joule
C
(100/r) Joule
D
Zero
Answer
Zero
Explanation
Solution
Because in uniform circular motion work done by the centripetal force is always zero.