Question
Question: A particle of mass m is placed on the centre of a fixed uniform semi-circular ring of radius R and m...
A particle of mass m is placed on the centre of a fixed uniform semi-circular ring of radius R and mass M as shown. Then work required to displace the particle slowly from centre of ring to infinity is : (Assume only gravitational interaction of ring and particle)

A

B

C

D

Answer

Explanation
Solution
Ui =
and Uf = 0
\ W = DU = 
