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A constant torque acting on a uniform ci...

A constant torque acting on a uniform circular wheel changes its angular momentum from `A` to `4A` in `4sec`. The torque acted on it is

A

`(3A)/4`

B

`A/4`

C

`(2A)/4`

D

`(3A)/4`

Text Solution

Verified by Experts

The correct Answer is:
A
`tau=(L_(2)-L_(1))/t`
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