Kinematics Question 558

Question: A body crosses the topmost point of a vertical circle with critical speed. it’s centripetal acceleration, when the string is horizontal will be[MH CET 2002]

Options:

A) 6 g

B)3 g

C) 2 g

D)g

Show Answer

Answer:

Correct Answer: B

Solution:

$ v=\sqrt{3gr} $ and $ a=\frac{v^{2}}{r}=\frac{3gr}{r}=3g $



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