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## Homework Statement

.A mass on a spring with a constant of 3.24 N/m vibrates, with its position given by the equation X= (5cm) cos (3.60t rad/s). (a) During the first cycle, for 0 <t < 1.75 s, when is the potential energy of the system changing most rapidly into kinetic energy? (b) What is the maximum rate of energy transformation?