Question: A 3.0 kg particle is in simple harmonic motion in one dimension and moves according to the equation x = (5.0 m) cos [(/3 rad/s)t

A 3.0 kg particle is in simple harmonic motion in one dimension and moves according to the equation x = (5.0 m) cos [(π/3 rad/s)t – π/4 rad], with / in seconds.
(a) At what value of x is the potential energy of the particle equal to half the total energy?
(b) How long does the particle take to move to this position x from the equilibrium position?

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