13.5.13. The solution of the differential equation of damped oscillations of the body has the form x = Ae-0,8tsin (4t + α). Determine the ratio of the spring constant, which is attached to the body, if its mass m = 10 kg.

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(Chapter 3 - Dynamics theme - 13.1: Free damped oscillations) 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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