Two bodies of mass 10 kg and 5 kg moving in concentric orbits of radii R and r such that their periods are the same. Then the ratio between their centripetal acceleration is
The correct option is C Rr
Angular velocity is given by, ω=2πT
Centripetal acceleration is given by, a=ω2r
aRar=ω2R×Rω2r×r=T2rT2R×Rr=Rr [As Tr=TR]