Problem 7: Cars A and B are traveling around the circular race track. At the instant shown, A has a speed of 25 m/s and is decreasing its speed at the rate of 1 m/s2, whereas B has a speed of 30 m/s and is increasing its speed at 2 m/s. (a) Determine the relative velocity vector of car A with respect to car B at this instant. (b) Determine the relative acceleration vector of car A with respect to car B at this instant. A TA=100 m 60 TB = 90 m Problem 7