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The minimum velocity v with which charge...

The minimum velocity v with which charge q should be projected so that it manages to reach the centre of the ring starting from the position shown in figure is

A

`v = sqrt((kQq)/(mR ) ( 2- sqrt(2)))`

B

`v = sqrt((kQq)/(2mR ) ( 2- sqrt(2)))`

C

` v= sqrt((kQq)/( mR))`

D

`v = sqrt((kQq)/( sqrt(2)mR) ( 1-sqrt(2)))`

Text Solution

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The correct Answer is:
A
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