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Constant angular acceleration

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A flywheel has a mass of 100 kg and a radius of gyration of 150 mm.
It is accelerated from 100 rev/min to 250 rev/min at a constant rate in 15 s. Calculate:

i)
the total energy required to produce the acceleration

ii)
the power required at the start and end of the period of acceleration

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The total kinetic ...

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