A horizontal disk is rotating with angul...

A horizontal disk is rotating with angular velocity `omega` about a vertical axis passing through its centre. A ball is placed at the centre of groove and pushed slightly. The velocity of the ball when it comes out of the groove -

`(sqrt3)/(2)omegaR`

`(omegaR)/(2)`

`omegaR`

`(omegaR)/(sqrt2)`

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