A fly wheel of M.I. `0.32 kg m^(2)` is rotated steadily at 120 rad/s by 50 w electric motor. Then the value of the frictional couple opposing rotation is,A. 4.2 NmB. 0.42 NmC. 0.042 NmD. 42 Nm

A fly wheel of M.I. `0.32 kg m^(2)` is rotated steadily at 120 rad/s b

1.	A fly wheel of M.I. `0.32 kg m^(2)` is rotated steadily at 120 rad/s by 50 w electric motor. Then the value of the frictional couple opposing rotation is,A. 4.2 NmB. 0.42 NmC. 0.042 NmD. 42 Nm
Answer» Correct Answer - B `P = tau omega`

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A fly wheel of M.I. `0.32 kg m^(2)` is rotated steadily at 120 rad/s by 50 w electric motor. Then the value of the frictional couple opposing rotation is,A. 4.2 NmB. 0.42 NmC. 0.042 NmD. 42 Nm

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