15.5.4. The load weight m = 4 kg, falling down, leads via the thread in the rotation cylinder of radius R = 0,4 m. The moment of inertia of the cylinder with respect to the rotation axis I = 0,2 kg · m2. To determine the kinetic energy of a system of bodies in time when the load velocity v = 2 m / s.
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(Chapter 3 - Dynamics theme - 15.5: The 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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