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A uniform square plate of mass m and edg...

A uniform square plate of mass m and edge a initially at rest startas rotating about one of the edge under the action of a constant torque `tau`. Then at the end of the `5^(th)` sec after start

A

angular momentum is equal to `5tau`

B

kinetic energy is equal to `(75tau^(2))/(ma^(2))`

C

angular momentum is equal to `2.5 tau`

D

kinetic energy is equal to `(75tau^(2))/(2ma)`

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The correct Answer is:
A, D
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