A ball of mass m is released from A insi...

A ball of mass `m` is released from A inside a smooth wedge of mass `m` as shown in figure. What is the speed of the wedge when the ball reaches point B?

`((gR)/(3sqrt(2)))^(1//2)`

`sqrt(2gR)`

`((5gR)/(2sqrt(3)))^(1//2)`

`sqrt(3/2gR)`

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