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The flywheel begins to rotate with a constant angular acceleration of 0.5 rad / s ^ 2 and after 15 s after the start of movement acquires an angular momentum of 73.5 kg * m ^ 2 / s. Determine the kinetic energy of the wheel 20 seconds after the start of motion.

Problem 10050. A detailed solution with a brief note of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.

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