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A block of mass m is placed inside a smo...

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 `2 g` in the horizontal direction by external agent. Find the maximum angular displacement of the block with the vertical.
.

A

`2 tan^(-1)(2)`

B

`tan^(-1)(2)`

C

`tan^(-1)(1)`

D

`tan^(-1)((1)/(2))`

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The correct Answer is:
A
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