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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
`T=mr omega ^(2) therefore 10=0.25xx omega ^(2)xx0.1 therefore omega=20 rad//s`.
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