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A small ball is rolled with speed u from...

A small ball is rolled with speed `u` from piont A along a smooth circular track as shown in figure. If `x=3R`, then

Determine the required speed u so that the ball returns to A, the point of projection after passing through C, the highest point.

A

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

B

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

C

`(9)/(2)sqrt(gR)`

D

None of these

Text Solution

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The correct Answer is:
D
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