How does the type of tire tread affect the breaking distance of a car? manipulated and responding variables?

Answer 1

The shape of a tire tread determines how much of the rubber stays in contact with the road.

If the spaces between the ribs is wide less rubber touches the road.

If there are no spacers between the ribs the tread can squeeze together under pressure and cause some of the rubber to twist and not touch the pavement.

Another factor could also be what type compound the tread is made of. Softer rubber tends to have more grip, but too soft and it curls up under stress and doesn't stay in contact with the pavement. Too stiff and it doesn't grip well.

If the braking is done on a wet surface the space and shape of the tread come into play. The best wet surface tires will have the shape designed so that the grooves squeeze the water on the pavement off to the side of the tire so the center of the rubber has less water between it and the pavement for a much improved grip.

Hope that helps. I have tried many different tires in my 43 years of driving approximately 900,000 miles and I can feel the difference in the tread of a good tire and so-so tire.

You can go to www.tirerack.com and read reviews of tires to learn what testers learned and there are surveys you can read from people who put them on their vehicles. There are large photos of the tread you can examine to see the differences.

ENJOY.

Answer 2

If it is raining and ur tire doesnt have outward treads then it gets water out slower thus making breaking distance higher
but the base variables are weight and speed
if u double the weight then breaking distance is also doubled
but if u double the speed then breaking distance is quadrupled