# Numerical - Work done by centripetal force - Mechanics

**Q. If a particle of mass 5 kg moves uniformly along a circle of radius 10 m at 10 m/s, then what is the work done by centripetal force during its one revolution?***- Published on 21 Sep 15***a.** 0.5 kNm

**b.** zero

**c.** infinity

**d.** none of the above

**ANSWER: zero **