A fly wheel rotation about a fixed axis ...

A fly wheel rotation about a fixed axis has a kinetic energy of 360Joule, when it's engular speed is `30rad/sec`. What is the moment of inertia of the fly wheel about it's axis of rotation?

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`E=1/2Iomega^2 therefore 360=1/2I xx (30)^2 therefore I=720/900=0.8 kgm^2`

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