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A hollow sphere has radius 6.4 m. Minimu...

A hollow sphere has radius 6.4 m. Minimum velocity required by a motor cyclist at bottom to complete the circle will be.

A

17.7 m/s

B

10.2 m/s

C

12.4 m/s

D

16.0 m/s

Text Solution

Verified by Experts

The correct Answer is:
A
Minimum velocity at lowest point-
`v_("min") = sqrt(5gR) = sqrt(5 xx 10 xx 6.4) = 17.88 = 17.7 m//s`
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