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Title: what is the moment of inertia of the wheel in kgm2? Post by: nxcow on Nov 10, 2012 A rotating flywheel can be used to store energy. If it is required to store 1.00 X 106 J of energy when rotating at 400 rad/s, what is the moment of inertia of the wheel in kgm2?
Title: what is the moment of inertia of the wheel in kgm2? Post by: nw1018 on Nov 10, 2012 Rotational KE = 1/2I?^2
10^6 J / (400^2) = 1/2I = 6.25 6.25 x 2 = Inertia = 12.5 kg-m^2 |