A hollow sphere has radius $6.4 \,m$. Minimum velocity required by a motor cyclist at bottom to complete the circle will be ........... $m/s$
A hollow sphere has radius $6.4 \,m$. Minimum velocity required by a motor cyclist at bottom to complete the circle will be ........... $m/s$
$17.7$
$10.2$
$12.4$
$16.0$
A hollow sphere has radius $6.4 \,m$. Minimum velocity required by a motor cyclist at bottom to complete the circle will be ........... $m/s$
${v_{\min }} = \sqrt {5\,gr} = 17.7\,m/\sec $
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