Dievsky V.A. - Solution of task D2 option 30 (D2-30)

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D2-30 Dievskiy

A pulley (homogeneous ring) with a mass of 200 kg and a radius of 40 cm is driven into the rotation from the resting state by a moment M1 = 80 N m, testing the resistance forces whose moment M2 = 1,2ω2. Determine at which angle the pulley will rotate until its angular velocity becomes 4 rad / s.

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