14.6.13. A uniform disk of radius r = 0.1 m and a mass of 5 kg is connected to four rods length l = 0,5 m and a weight of 1 kg each. Phone system begins to rotate under the influence of external forces with angular velocity ω = 3t. Determine the moment of the external forces about the axis Oz.

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(Chapter 3 - Dynamics theme - 14.6: The theorem of change of angular momentum) of 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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