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Name: dryden
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: Around 1993
Question:
Does anyone know the average braking force of an automobile?


Replies:
General rule of thumb: maximum longitudinal or transverse force is about 1 g.

jade hawk

Actually that is quite accurate. It boils down to the coefficient of friction between common tire rubber and the pavement which is about 0.92 g (average) braking force and about 0.7 g after it is sliding. The equations get a little more difficult though, when you take into consideration the interlocking surfaces of the common soft-rubber tire and the rough surface of most pavements. Width of the tire has no effect on smooth surface coefficient of friction, but does have an effect on the interlocking surface effects of the tire. In effect, the softer the rubber, and the rougher the surface, the higher the braking force. For example, some Formula One cars have braking forces that exceed 2.5 g's!

dipper


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