(P12.225)-Cars A and B are traveling around the circular race track. At the instant shown, A has a speed of 90 ft/s and is increasing its speed at the rate of 15 ft/s^2, whereas B has a speed of 105 ft/s. and is decreasing its speed at 25 ft/s^2 Determine the relative velocity and relative acceleration of car A with respect to car B at this instant.
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