15.7.5. Belt drive starts moving from rest under a constant moment of couple M = 2.5 Nm. The moments of inertia of the pulley with respect to their rotation axes I2 = 2I1 = 1 kg · m2. Determine the angular velocity of the pulley 1, after three turns, if the pulley radius R2 = 2R1.

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(Chapter 3 - Dynamics theme - 15.7: The theorem of change of kinetic energy of the mechanical system) from Reshebnik to the collection of short tasks on the theoretical mechanics Kep OE, JA Viba, OP Grapis, JA Svetinysh et al. Publishing Moscow / Graduate School / 1989, 2009, 2012.
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