A flywheel has moment of intertia of 4kg m^-2 about an axis through its centre and is rotating 120 revolution per minute.What constant opposing torque is required to bring it at rest in 5 second?

 

A flywheel has moment of intertia of 4kg m^-2 about an axis through its centre and is rotating 120 revolution per minute.What constant opposing torque is required to bring it at rest in 5 second?

Answer:

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