20.2.16 The decision of the collection (Reshebnik) Kepe

20.2.16 The decision of the collection (Reshebnik) Kepe

20.2.16. Force Fb = 40cos3t, with a spring rigidity coefficient = 300 H / m. Determine the generalized force corresponding to the generalized coordinate x at time t = 2 s, if the coordinate x = 0.1 m.

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(DYNAMICS, Chapter 20 - Lagrange equation of the second kind, paragraph - 20.2: Generalized power systems with one degree of freedom) 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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