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A string breaks if its tension exceeds 1...

A string breaks if its tension exceeds 10 newtons . A stone of mass 250 gm tied to this string of length 10 cm is rotated in a horizontal circle. The maximum angular velocity of rotation can be

A

20 rad//s

B

40 rad/s

C

100 rad/s

D

200 rad/s

Text Solution

Verified by Experts

The correct Answer is:
A
(a) `T = momega^(2)r rArr 10 = 0.25 xx omega^(2) xx 01`
`rArr omega = sqrt(400) = 20` rad/sec
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