The 3300 lb front-wheel-drive car whose mass center is at A is pulling a 4300 lb trailer whose mass center is at B. The car and trailer start from rest and accelerate uniformly to 60 mph in 18 s. Determine the forces on all tires, as well as the total force acting on the car due to the trailer. In addition, determine the friction required so that the wheels of the car do not slip. Assume that the car and trailer are laterally symmetric and that the rotational inertia of the wheels is negligible. Note that the mass center of the trailer is directly above the axle of the rear wheel.

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