estions 9 and 10 Two coaxial pipes of radius 1m and 1 2 m are have a common horizontal axis A uniform solid spherical ball of

Question

estions 9 and 10 Two coaxial pipes of radius 1m and 1 2 m are have 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 any where On slight displacement the ball starts moving along the gap shown in the downward direction There are 2 possible cases A 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 both pipes ball have same mass of 1kg When ball reaches the bottom the pipe which is free to rotate is rotating with angular 00 velocity Let it be o in 1st case w in 2nd case 00 5 6 B A 1 1 2m 5 6 B 1 1m 000 If the angular velocity of ball at the bottom in the 2 cases is 2 C 27 125 D 3 2 a respectively D 27 o

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