The sports car has a weight of 4500 lb and center of gravity at G. If it starts from rest it causes the rear wheels to slip as it accelerates. Determine how long it takes for it to reach a speed of 10 ft/s. Also, what are the normal reactions at each of the four wheels on the road? The coefficients of static and kinetic friction at the road are μ_s = 0.5 and μ_k = 0.3, respectively. Neglect the mass of the wheels.

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B 4 ft- 2.5 ft 2 ft A