13.4.17. Determine the angular frequency of free oscillations of vertical load mass m = 2 kg, the stiffness coefficients of the springs if c1 = c2 = c3 = 300 N / m.

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(Chapter 3 - Dynamics theme - 13.1: Free undamped vibrations) from 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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