Test Academy | A wheel is rotating with an angular speed of 20 rad / sec . It is stopped to rest by applying a constant torque in 4s . If the moment of inertia of the wheel about its axis is 0.20 kg-m², then the work done by the torque in two seconds will be 10 J, 20 J, 30 J, 40 J

Question

A wheel is rotating with an angular speed of 20 rad / sec . It is stopped to rest by applying a constant torque in 4s . If the moment of inertia of the wheel about its axis is 0.20 kg-m², then the work done by the torque in two seconds will be

Options :

10 J
20 J
30 J
40 J

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