Find the maximum fluctuation of energy of the flywheel with mass moment of inertia 2000 kg – m2, maximum and minimum angular speed are 15 rad/s, 10 rad/s respectively.

Find the maximum fluctuation of energy of the flywheel with mass moment of inertia 2000 kg – m2, maximum and minimum angular speed are 15 rad/s, 10 rad/s respectively. Correct Answer 125 kN – m

∆E = I ω (ω1 – ω2) ω = ω1 + ω2 / 2 = 15 + 10 / 2 = 12.5 ∆E = 2000 * 12.5 (15 – 10) = 125 kN – m
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