Inside a fixed sphere of radius `R` and uniform density `rho`, there is spherical cavity of r
Channel: Doubtnut
Date: 12/07/2020

Inside a fixed sphere of radius `R` and uniform density `rho`, there is spherical cavity of radius `(R )/(2)` such that surface of the cavity passes through the centre of the sphere as shows in figure. A particle of mass `m_(0)` is released from rest at centre `B` of the cavity. Caculate velocity with which particle strikes the centre `A` of the sphere. Neglect earth's gravity. Initially sphere and particle are at rest.