Question: A particle has a displacement x = 0.4 cos(3t + p/4), where x is in meters and t is in seconds. (a) Find the frequency

A particle has a displacement x = 0.4 cos(3t + p/4), where x is in meters and t is in seconds.

(a) Find the frequency f and period T of the motion.

(b) Where is the particle at t = 0?

(c) Where is the particle at t = 0.5 s?

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