Homework Help: physics

Posted by aok on Thursday, November 18, 2010 at 10:10pm.

The position of a mass oscillating on a spring is given by x = (5.6 cm) cos [2πt / (2.03 s)].
(a) What is the period of this motion?

(b) What is the first time the mass is at the position x = 0?

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