A circular platform is rotating with constant angular velocity 10 rad/s. A bug starts from point A ….

Q: A circular platform is rotating with constant angular velocity 10 rad/s. A bug starts from point A and reaches at point B through an irregular shape path. During motion of bug, the angular velocity of platform remains constant. Fine work done by centrifugal force on the bug. (take, m r02 =1/2 kgm2)

Numerical

(a) 5 J

(b) 20 J

(c) 75 J

(d) None of these

Ans: (c)