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A stone of mass of 1 kg is tied to the e...

A stone of mass of 1 kg is tied to the end of a string 1 m long. It is whirled in a vertical circle. The velocity of the stone at the bottom of the circle is just sufficient to take it to the top of circle without slackening of the string. What is the tension in the string at the top of the circle? (Take, g =10 `ms^(-2)`)

A

zero

B

1 N

C

`sqrt(10)N`

D

10 N

Text Solution

Verified by Experts

The correct Answer is:
A
In critical case, tension at topmost point is zero.
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