A rotating flywheel has moment of inertia12.0 kg m² for an axis along the axle about whichthe wheel is rotating. Initially the flywheel has 30.0 Jof kinetic energy. It is slowing down with an angularacceleration of magnitude 0.700 rev/s². How long does it take for the rotational kinetic energy to become half its initial value, so it is 15.0 J?Express your answer to three significant figures and include the appropriate units.ValueC?

Given, Moment of inertia, I=12kgm2 Initial kinetic energy, Ki=30J The magnitude of angular…

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How long does it take for the rotational kinetic energy to become half its initial value, so it is 15.0 J? Express your answer to three significant figures and include the appropriate units.