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Starting from rest the fly wheel of a mo...

Starting from rest the fly wheel of a motor attains an angular velocity of `60 rad//sec` in `5` seconds. The angular acceleration obtained is

A

` 6rad//s^(2)`

B

`12 rad//s^(2)`

C

`300 rad//s^(2)`

D

`150 rad//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`alpha=a/r`
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