16.1.2. For a given rotation of the equation φ = 2 (t2 + 1) inclined shaft with an axial moment of inertia Iz = 0,05 kg · m2 identify the main point of the external forces acting on the body.

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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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