21.2.7. The mechanical system consists of two bars 1 and 2 are located in a horizontal plane; q1 - the angle of rotation of the rod 1 around the pivot O1, q2 - the angle of rotation of the rod 2 O2 around the pole. Are generalized coordinates q1 and q2 at a time when the main small oscillations of the system?

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(DYNAMICS, Chapter 21 - Small oscillations of mechanical systems, par - 21.2: The vibrations of systems with two degrees of freedom) from 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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