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Tension of a string is 6.4 N and load is...

Tension of a string is 6.4 N and load is applied to it at its lower end of a string is 0.1 kg .If the length of string is 6 m , then its angular velocity will be `

A

`3 rad//s`

B

`4 rad//s`

C

`2 rad//s`

D

`1 rad//s`

Text Solution

Verified by Experts

The correct Answer is:
A
`T=m r omega ^(2)`
`therefore omega ^(2)=(T)/(mr)=(6.4)/(0.1xx6)`
`omega ^(2)=10`
`omega =sqrt(10)=3 rad //s `.
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