Physics Two Dimensional Motion Question 302

Question: 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

[AFMC 1998]

Options:

A) 100 rJ

B)$ (\frac{r}{100})J $

C) $ (\frac{100}{r})J $

D)Zero

Show Answer

Answer:

Correct Answer: D

Solution:

Work done in circular motion is always zero.