The body weight of 0.5 kg hangs on a rubber cord, which stiffness of 50 N / m. Body drew off down to a distance of 2 cm, and told him the speed of 1 m / s in the opposite direction. Find displacement amplitude, and initial phase of the oscillation energy of the body.
Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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