How will the pressure force of the front wheels of a car of mass m = 1500 kg moving on a horizontal road (with a coefficient of friction k = 0.4) change with the maximum possible braking of the rear wheels without slipping? The center of gravity of the car is located in the middle between the wheels and is raised above the ground by r = 60 cm, the distance between the front and rear wheels is d = 3.5 m.

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