Q. 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) $16.0\ m/s$
Explanation
(a) $v_{\min} = \sqrt{5\ gr} = 17.7\ m/\sec$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.