(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The front brake pads on your car wear out faster than the rear brake pads; in fact,

some cars are specifically designed with large front brake pads because of this. This

results from the fact that when a car is braking the magnitude of the friction force acting

on the front wheels of the car is larger than the magnitude of the friction force acting on

the rear wheels of the car. Consider a car that has a mass of 1500 kg that is decelerating

(by using the brakes) at a rate of 0.25 g. The distance between the front and rear axles is

2.8 m and the center of mass of the car is directly in-between the two axles at a height of

0.6 m above the ground. What is the ratio of the force of friction acting on the front tires

to the force of friction acting on the rear tires? Assume that the coefficients of friction

between the tires and the road are the same for all tires and, for simplicity, assume that

the car is skidding as it decelerates.

3. The attempt at a solution

First I set up a FBD. That didn't seem right...at all. So now I'm thinking about using torque. I don't really know how to set this up.

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# Homework Help: Car braking and ratio of force of friction

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