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A wheel rotating at an angular speed of ...

A wheel rotating at an angular speed of 20 rad/s is brought to rest by a constant torque in 4.0 seconds. If the moment of inertia of the wheel about the axis of rotation is 0.20 `kg-m^2` find the work done by the torque in the first two seconds.

A

10 J

B

20 J

C

30 J

D

40 J

Text Solution

Verified by Experts

The correct Answer is:
C
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