- #1
DaTario
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- 35
Does anybody know the empirical formula that relates the initial velocity of a car in a street with the length of the mark on ground left by the tires when the brakes are set at maximum force, stopping the wheel ?
The force of friction depends on the coefficient of friction and the normal force. The normal force is just the weight = mg. Thus the acceleration [itex]a = F/m = ( \mu m g)/ m = \mu g[/itex].DaTario said:But the reason it seems to me as a little more envolved problem was the presence of gravity acceleration in the explanation and formula of Mr. Krab.
DaTario said:Is it true that [tex] \mu [\itex] is 1 in the friction between tires' rubber and the asphalt ?
When you apply the brakes on your vehicle, the friction between the tires and the road surface causes the tires to grip and slow down. This friction also causes the tires to heat up and create a thin layer of melted rubber on the surface of the tire, which is what leaves the marks.
In most cases, no. The marks left by tires after braking are usually just a normal result of the friction between the tires and the road. However, if you notice excessive or prolonged tire marks, it could indicate a problem with your tires or brakes and should be checked by a professional.
Tire marks after braking do not significantly affect the lifespan of your tires. However, if you frequently engage in aggressive or sudden braking, it can cause excessive wear and tear on your tires, leading to a shorter lifespan.
Tire marks after braking are a natural result of driving and cannot be completely prevented. However, you can minimize them by avoiding sudden or aggressive braking and maintaining your tires properly. Good tire maintenance includes regular rotation, balancing, and checking for proper tire pressure.
Yes, different types of tires can leave different marks after braking. For example, performance tires with a softer rubber compound may leave more noticeable marks compared to all-season tires with a harder rubber compound. Additionally, the tread pattern on the tires can also affect the appearance of the marks.