Two coaxial pipes of radius 1m and 1 2m are having a common

Last updated: 6/13/2023

Two coaxial pipes of radius 1m and 1 2m are having a common horizontal axis A uniform solid spherical ball of radius 0 1m is fitted inside them as shown The inner surfaces are sufficiently rough so that there is no slipping anywhere On slight displacement the ball starts moving along the gap shown in the downward direction There are 2 possible cases 1 The inner pipe is held fixed but outer pipe is free to rotate 2 The outer pipe is held fixed but inner pipe is free to rotate All the 3 bodies have same mass 1 Kg both pipes ball When ball reaches the bottom the pipe which is free to rotate is rotating with A angular velocity w Let it be w in 1st case w in 2nd case w W 3 5 1 2m B 5 1m C 2 D