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The breaking force of acting of a string...

The breaking force of acting of a string is 16 kg . The maximum frequency with which a body of mass `0.5` kg can be whirled in a horizontal circle `( g = pi^(2)ms^(-1))` with a length of `0.5` m of the string is

A

4

B

5

C

8

D

10

Text Solution

Verified by Experts

The correct Answer is:
A
`mg=-mromega^(2) " or " 16 xx pi = 0.5 xx 0.5 xx 4pi^(2)v^(2)`
`16 = 0.25 xx 4xxv^(2) , v = 4 `
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