15.3.15. By slider 1 mass m = 1 kg attached spring 2. The spring is compressed from a free state to the amount of 0.1 m, after which the goods are released without initial velocity. Determine the spring constant, if the goods, having risen of 0.1 m, acquires a velocity of 1 m / sec.

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(Chapter 3 - Dynamics theme - 15.3: The theorem of change of kinetic energy of the material point and rigid body in translation) 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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