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.
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.
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Transcribed Image Text:A rotating flywheel has moment of inertia
12.0 kg m² for an axis along the axle about which
the wheel is rotating. Initially the flywheel has 30.0 J
of kinetic energy. It is slowing down with an angular
acceleration of magnitude 0.700 rev/s².
Transcribed Image Text: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.
Value
C
?
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