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A particle crosses the topmost point C o...

A particle crosses the topmost point C of a vertical circle with critical speed , then the ratio of velocities at points A, B and C is

A

`3 : 2 : 1`

B

5 : 3 : 1`

C

`5^(2) : 3^(2) : 1^(2)`

D

`sqrt(5) : sqrt(3) : sqrt(1)`

Text Solution

Verified by Experts

[4]
`v_(e)=sqrt(g)R,v_(A)=sqrt(5)gR,v_(n)=sqrt(3)gR`
`v_(A) :v_(B):v_(C ) : :sqrt(5): sqrt(3):1`
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