13.4.22. The fluctuation of the material point is given by the equation x = 20cos4t + 30sin4t, where x -. Cm Determine the oscillation amplitude in cm.

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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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