Задача 40664.

Point oscillates with an amplitude A = 4 cm and a period of T = 2 s. Write the equation of these oscillations, assuming that at time t = 0 displacement x (0) = 0 and x ´(0) <0 Identify phase for the time when the displacement x = 1 cm and x> 0.

Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
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