In the figure, the driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock an skid along the road. The coefficient of kinetic friction between tires and road is 0.49. 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 = 1.9 m behind the front axle and distance h = 1.2 m above the road. The car weighs 12 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.)

In the figure, the driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock an skid along the road. The coefficient of kinetic friction between tires and road is 0.49. 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 = 1.9 m behind the front axle and distance h = 1.2 m above the road. The car weighs 12 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.)

College Physics

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ISBN:9781305952300

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Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.

Equilibrium of Forces

The tension created on one body during push or pull is known as force.

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In the figure, 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 0.49. 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 = 1.9 m behind the front axle and distance h = 1.2 m above
the road. The car weighs 12 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.)
L.

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