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 $
