The car travels around the portion of a circular track having a radius r such that when it is at point A it has a velocity v₁ which is increasing at the rate of dv/dt = k_s. Determine the magnitudes of its velocity and acceleration when it has traveled three-fourths the way around the track. Given:

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k = 0.002 s r = 500 ft ft VI = 2 - -2 S