Kinematics Question 549

Question: A hollow sphere has radius 6.4 m. Minimum velocity required by a motor cyclist at bottom to complete the circle will be[RPET 1997]

Options:

A) 17.7 m/s

B)10.2 m/s

C) 12.4 m/s

D)16.0 m/s

Show Answer

Answer:

Correct Answer: A

Solution:

$ {v _{\min }}=\sqrt{5gr}=17.7m/\sec $



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