the driver of a car on a horizontal road makesan emergency stop by applying the brakes so that all four wheelslock and skid along the road.The coefficient of kinetic friction betweentires and road is 0.40.The separation between the front andrear axles is L = 4.2 m, and the center of mass of the car is locatedat distance d =1.8 m behind the front axle and distance h = 0.75 mabove the road. The car weighs 11 kN. Find the magnitude of (a)the braking acceleration of the car, (b) the normal force on eachrear wheel, (c) the normal force on each front wheel, (d) the brakingforce on each rear wheel, and (e) the braking force on eachfront wheel. (Hint: Although the car is not in translational equilibrium,it is in rotational equilibrium.)

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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the driver of a car on a horizontal road makes
an emergency stop by applying the brakes so that all four wheels
lock and skid along the road.The coefficient of kinetic friction between
tires and road is 0.40.The separation between the front and
rear axles is L = 4.2 m, and the center of mass of the car is located
at distance d =1.8 m behind the front axle and distance h = 0.75 m
above the road. The car weighs 11 kN. Find the magnitude of (a)
the braking acceleration of the car, (b) the normal force on each
rear wheel, (c) the normal force on each front wheel, (d) the braking
force on each rear wheel, and (e) the braking force on each
front wheel. (Hint: Although the car is not in translational equilibrium,
it is in rotational equilibrium.)

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