Smooth block on frictionless surface is attached to spring

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A smooth block on a frictionless surface is attached to a spring, pulled to the right a distance of 4 cm and the released.  Three seconds later it returns to the point of release. What is the frequency and what is the maximum speed?   Can you by chance give me the position and the velocity after 2.55s after release?

Reference no: EM13655302

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