16.1.4. For a given equation of rotation φ = 3t2 - t of the rod with an axial moment of inertia Iz = 1/6 kg · m2 identify the main moment of the external forces acting on the rod.

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(Chapter 3 - Dynamics theme - 16.1: Differential equations of rotation of a rigid body around a fixed Hosea) 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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