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A cubical block of mass M and edge a sli...

A cubical block of mass M and edge a slides down a rougg inclined plane of inclination `theta` with a uniform velocity. The torque of the normal force on the block about its centre has magnitude.

A

`mga sin theta`

B

`(1)/(3)mga sin theta`

C

`(1)/(4)mga sin theta`

D

`(1)/(2) mga sin theta`

Text Solution

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The correct Answer is:
A
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