Question: The position of a particle is given by x = (7 cm) x cos 6t, where t is in seconds. What is? (a) The frequency,

The position of a particle is given by x = (7 cm) x cos 6πt, where t is in seconds. What is?

(a) The frequency,

(b) The period,

(c) The amplitude of the particle's motion?

(d) What is the first time after t = 0 that the particle is at its equilibrium position? In what direction is it moving at that time?

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