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

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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`
D. `16.0 m//s`
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1 Answer

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Correct Answer - A
`v_(min)=sqrt(5gr)=17.7 m//s`
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