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In a 'well of death' a ride drives round...

In a 'well of death' a ride drives round the inner wall of a hollow cylindrical chamber of siameter 20 m .If the coefficient of force friction between tyres and inner wall of a hollow cylinder is 0.5, then the minimum speed of the rider without sliding down will be

A

`7 m//s`

B

`14 m//s`

C

`2sqrt7 m//s`

D

`7 sqrt2 m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
`v=sqrt((rg)/(mu))=sqrt((10xx9.8)/(0.5))=sqrt(196)`
`v=14 m//s`.
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