17.1.25. The tube is rotated at a constant angular velocity ω = 2 rad / s on the horizontal axis. By moving the tube material point of mass m = 0.2 kg with the relative acceleration ar = 4 m / s2. Identify Module force F at the time when l = 0,2 m, and the tube is in a vertical plane.

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(DYNAMICS, Chapter 17 - The principle of D'Alembert, paragraph - 17.1: kinetochtatiki method for a material point) 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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