A block of mass m is placed inside a smooth hollow cylinder of radius R kept horizontally. Initially system was at rest.Now cylinder is given constant acceleration 2g in the horizontal direction by external agent. The max. angular displacement of the block with the vertical is :-a. 2 tan-1 (2)b. tan-1 (2)c. tan-1 (1)d. tan-1(1/2)

Hello Aditya, here is the figure related to the problem

Hence option (b) is the best one
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