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The angular momentum of a flywheel havin...

The angular momentum of a flywheel having a moment of inertia of ` 0.4 kg m^(2)` decreases from 30 to 20 ` kg m^(2)//s` in a period of 2 second. The average torque acting on the flywheel during this period is :

A

10 N.m

B

2 . 5 N.m

C

5 N.m

D

1 . 5 N.m

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The correct Answer is:
C
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MOTION-10 ROTATIONAL-Exercise - 1
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