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A body of mass m tied to a string of lrn...

A body of mass m tied to a string of lrngth r is at its lowest position . What should be the minimum speed given to it so as just to complete one revolution ?

A

`sqrtgr`

B

`sqrt3gr`

C

`sqrt5gr`

D

`sqrt7gr`

Text Solution

Verified by Experts

The correct Answer is:
C
`v_(L)=sqrt(5rg)`
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