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Dry pavement creates more friction than ice pavement because when surfaces are dry, there is more contact between the tires and the road, leading to increased friction. On the other hand, ice has a low coefficient of friction, causing tires to slip more easily since there is less traction between the ice and the tires.
On wet pavement, the presence of water reduces the friction between the tires and the road surface, making it more slippery. This is because the force needed to overcome static friction (needed to start moving) is less than the force needed to overcome sliding friction (needed to maintain motion). As a result, it is easier for a vehicle to slide or skid on wet pavement compared to dry pavement.
WHY!It is because the ice makes the friction between the tires and the pavementgreater.
The friction factor used in the Darcy-Weisbach equation to calculate the pressure drop in pipe flows is dependent on the surface roughness inside the pipe and Reynolds number of the pipe flow. The relationship between the friction factor and the relative roughness, Reynolds number can be found in the Moody diagram.
Dry pavement of course.
in a smooth pavement, yes but in a rough pavement, no.
Pavement or smooth rock runoff affects waterways because they create more impervious surfaces.
Pavement is smoother and harder than grass, providing a rougher surface for tires to grip onto, thus creating more friction. Grass has a softer and uneven surface, resulting in less traction and lower friction compared to pavement.
On the ground on the pavement
Relating to cars, the friction of the tires creates a backward force on the pavement, the pavement then creates an opposite forward force that pushes the car forward on the road.
friction: the force that resists relative motion between two bodies in contact.
That's going to depend on the weight of the car, the composition of the pavement, the tire-tread, whether the brakes apply to 2 wheels or to 4, and whether the pavement is wet, dry, oil-slicked, clean, dirty, rough, or smooth.