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Why are stopping distances for breaking cars increased on wet roads?
Wiki User
∙ 8y ago
The wet road surface has less friction as the water interacts with the rubber and acts somewhat like a lubricant
Wiki User
∙ 8y ago
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Why are stopping distances for braking cars increased on wet roads?
The water gets into the brakes and when you stop there is less friction.
What factors make a car stop more slowly?
Friction. Friction would affect how fast a car stopped (i.e. lots of friction equals fast stopping). The friction would be affected by the road conditions (icy roads less friction), tire condition (wore down gives less friction), mass of car (as if the mass is large it will have more momentum and therefore will be harder to stop, a=F/m so if mass is large deceleration will be smaller) and the reaction time will affect the total stopping time (but not the braking time).
How do worn tires affect braking distance?
It has long been known that a decrease in tyre tread depth can lead to the deterioration of a tyre's performance during cornering, and straight line braking in the wet. A tyre is unable to deal with the same volume of water on the road at lower tread depths, which means that the tyre is unable to transmit traction and braking forces as effectively. Previous studies had confirmed this relationship, however there was a need for independent testing to quantify the effects on typical cars found on today's roads. In 2003, the British Rubber Manufacturers Association (BRMA) commissioned MIRA to study the effects of tread depth on stopping distances. The study was carried out on MIRA's test track in Nuneaton, and 5 different tread depths were tested - 6.7mm, 4.1mm, 2.6mm, 1.6mm (the legal minimum) and 0.9mm. Vehicles were mounted with equipment to record time, speed, and distance. The tests were carried out on two different surfaces at the testing track, hot rolled asphalt and smooth concrete. In order to ensure the accuracy of the results, the tests were repeated several times. The stopping distance was recorded at each of these tread depths and the points plotted on a graph of stopping distance versus tread depth. A line was drawn through the points to show the trend between stopping distance and tread depth, from which information could be taken.
Why do roads shine?
Its an illusion! LOL! :-)
How does surface of car affect car speed?
If the surface is rough/bumpy , the vehicle cant safely go as fast as it can on a smooth road. Also if the car is bouncing, it's aerodynamics will be disturbed causing more drag. Ground clearance also has to be increased on rough roads, causing more drag.
Why are stopping distances for braking cars increased on wet roads?
The water gets into the brakes and when you stop there is less friction.
Why one must drive slowly on wet roads?
Increased stopping distance-danger of hydroplaning
Why doesnt the highway code include stopping distances greater than 70?
The highway code typically includes information that is relevant to the majority of driving situations. Stopping distances greater than 70mph are less common and may be considered atypical. Additionally, including stopping distances above 70mph may give the impression that driving at those speeds is safe, which is not necessarily the case. It is always important for drivers to adjust their speed and maintain a safe stopping distance based on the road conditions and their vehicle's capabilities.
Why have speed limits changed over the last 100 years?
cars and roads have progressed, enabling more control and stopping performance also a better understanding of safety,some roads reducing speeds where population requires ie near schools, and open road speeds can be increased.
Why do roads have expansion joints?
so they can prevent it from breaking
What are the differences between the four major types of roads?
The difference between the four roads are; the expressway is designed to carry huge amounts of traffic quickly over long distances. Arterial roads carry moderate amounts of traffic over shorter distances. Collector roads move traffic from local roads to areterial roads. Local roads that are smaller and narrower than arterial roads.
What are interstates?
A network of roads for the purpose of traveling long distances at an above average speed.
Did the tang rulers build roads and waterways that increased the trade?
true.. yes
When where roads invented?
Straight roads were invented in the pre-roman iron age. And did you know, that some roads in America go straight for such long distances that they have to make a right turn to account for the curvature of the earth so it conforms to the map?
Is salt for melting ice good for the enrivonment?
No, because the content of salt in soils and waters near the roads is increased. Also sodium chloride has a corrosive effect on the roads and on metallic parts of vehicles and roads accessories.
Which of following is NOT recommended when driving on slippery roads Choose any that apply A Reduce speed B Increase Speed C Decrease following distances D Increase following distances E Brake Slowly?
It is NOT recommended when driving on slippery roads to:B Increase SpeedC Decrease following distancesIt IS recommended on slippery roads to:A Reduce speedD Increase following distancesE Brake SlowlyAnd with all driving, keep both hands on the wheel.
Why should one never drive in extremely bad weather?
Extremely bad weather conditions can prohibit you from seeing for long distances. Roads may be in poor condition and your vehicle may not be able to maneuver the roads accurately.
