An object attached to a coiled spring is pulled down a distance, a, from its rest position and then released. Assuming that the motion is simple harmonic with period T, write a function that relates the displacement, d, of the object from its rest position after t seconds. Assume that the positive direction of the motion is up. a = 3; T= 3r seconds Select the correct choice below and fill in the answer boxes within your choice. (Simplify your answer. Type an exact answer, using n as needed. Use integers or fractions for any numbers in the expression.) O A. d(t) = cos O B. d(t) = sin
Unitary Method
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