14.1.4. 1 Body weight m = 50kg ascends along the inclined plane by means of a cable being wound onto the drum 2 of radius R = 0,4 m. Determine the unit principal vector of the external forces acting on the body 1 if the angular acceleration of the drum ε = 5 rad / s2.

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(Chapter 3 - Dynamics theme - 14.1: on the movement of the center of mass theorem) 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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