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A single wire ACB passes through a smoot...

A single wire ACB passes through a smooth ring at C which revolves at a constant speed in the horizontal circle of radius r as shown in the fig. the speed of revolution is

A

`sqrt(rg)`

B

`sqrt(2rg)`

C

`2sqrt(2rg)`

D

`2sqrt(rg)`

Text Solution

Verified by Experts

The correct Answer is:
1
`T cos 60^(@)+T cos 30^(@)=(mv^(2))/R`
`T cos 30^(@)+T cos 60^(@)=mg`
`v=sqrt(rg)`
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