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IF a tension In a string is 6.4 N. A lo...

IF a tension In a string is 6.4 N. A load at the lower end of a string is 0.1 kg, the length of string is 6 m then find its angular velocity(g=10`m//s^2`)

A

3 rad/s

B

4 rad/s

C

2 rad/s

D

1 rad/s

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