A solid sphere of mass M and radius R is surrounded by a spherical shell of sa
Channel: Doubtnut
Date: 16/02/2020

A solid sphere of mass M and radius R is surrounded by a spherical shell of same mass and radius 2R as shown. A small particle of mass m is relased from rest from a height h`(lt lt R)` above the shell. There is a hole in the shell. Q. What time will it take to move from A to B?