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The bob of a swing seconds pendulum (o...

The bob of a swing seconds pendulum (one whose time period is 2s ) has small speed `v_(0)` at its lowest point .Its height from this lowest point 2.25 s after passing through it is given by

A

`(v_(0)^(2))/(2g)`

B

`(v_(0)^(2))/(g)`

C

`(v_(0)^(2))/(4g)`

D

`(9v_(0)^(2))/(4g)`

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