Q. 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) $100\ rJ$
B) $(r/100)J$
C) $(100/r)J$
D) Zero
Explanation
(d) Work done in circular motion is always zero
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.