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A rabbit runs across a parking lot on which a set of coordinate axes has, strangely...

A rabbit runs across a parking lot on which a set of coordinate axes has, strangely enough, been drawn. The coordinates of the rabbit’s position as a function of time are given by

x = -0.31t^2 + 7.2t + 28,

y = 0.22t^2 – 9.1t + 30,

with x in meters and t in seconds. At t =15 s, what is the rabbit’s position vector in unit vector notation and in magnitude-angle notion?

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