State the factors that control the braking distance of a car?

Question

For each factor explain the effect on the braking distance

Answer 1

friction - greater friction = shorter braking distance
cars velocity = greater velocity = greater time to stop car = greater braking distance
cars mass and cars acceleration - the greater the mass and/or acceleration of the car = the greater the force required to stop the car = greater braking distance

Answer 2

Tires ; The tread and design of each tyre is different, and therefore has a relation to the ratio.
Brake Pads or whatever kind of Braking system is used; A Hydraulic Brake system will react or behave different than a Mechanical one. The actual effect depends on the Operator.
Weight of the vehicle, as tested; More mass, longer distance.
Environmental Conditions; wet or cold, longer distance.
Overall Condition of the Braking System; An improper installed brake system will fail. A leak in a line will ultimately fail. A worn pad will ultimately fail.
Presure required to apply the brakes; This is like Human power applied to the pedal, if slammed hard, the brakes will lock and the car will lose control, if pumped or tapped the brakes will respond with better control.
The brakes of a vehicle in most cases, are the most important part of the entire operation of the vehicle.

Answer 3

-- tire thread: the worst condition the tire the longer the distance.
-- friction tires-road: the bigger the friction the smaller the distance (this depends on conditions of the road, material of surface, temperature, weight of the car, etc.)
-- air resistance: the shape of the car, density and wind blow have a small efect, but the biggest the resistance, the smallest the distance.
-- brake pads: the better their condition and adjustment, the smaller the distance.
-- how hard the pedal is pressed: the harder, the smallest the distance.
-- Slope: the biggest the slope favouring the car movement, the longer the distance, the biggest the slope going up, the smallest the distance.
-- Initial velocity: the faster it goes, the longer the distance

im sure theres more, this is what i came up with

Answer 4

there are more factors than I could probably list.

speed - faster is longer
weight - heavier is longer
road angle - uphill is shorter, downhill is longer (gravity)
road type and conditions - slippery is longer
tire wear - smoother is longer
engine breakage - more is shorter
brake pad wear - more worn is longer
braking fluid condition- proper amount makes it shorter
brake type - ABS usually makes stopping distance longer but maintains control better
brake application - too much pressure on brakes may cause the tires to slip in certain conditions, too little obviously doesn't get good braking effectiveness
possible obstructions - if you hit a tree you'll stop pretty quick

that's all i can think of at the moment, but i'm sure i missed something

Answer 5

by using controlled end, i could assume which you're bearing on the prepare no longer having to make an emergency utility of the brakes (in any different case called "plugged" or "great holed") It relies upon on how long the prepare is, what's the full tonnage... if maximum persons of the prepare is heading uphill, or downhill, how quickly is the prepare shifting, what's it hauling (beverages slosh interior the tanks, making combating harder) Weight has greater bearing on secure combating than length has.... as an occasion, you need to have a 6500 ton (assuming 50 autos weighing 30 lots slightly with a hundred numerous fabric) prepare that's barely 50 autos long (approx 2500') all autos being plenty, which might take greater braking attempt to end the comparable length of prepare all autos being empties (approx 1500 lots) The empty prepare ought to end in a pair of million/4 of the gap that the loaded prepare ought to by using tonnage on my own. greater moderen autos with the greater moderen brake kit look to end alot much less difficult than the older autos with the worn brake kit. Engineer makes a huge difference as properly in accordance with no rely if or no longer, he's properly-known with the territoty that he's vacationing ok, and the place his prepare is at (plenty coming down over a hill working in, and pushing the prepare as a substitute of being drug by using the engine) i'm hoping that it particularly is adequate techniques for you.

Answer 6

Perception time is the three-quarters of a second it takes for you to realize that you need to brake.
Reaction time is the three-quarters of a second it takes to move your foot to the brake pedal. When you combine perception and reaction time, a full 132 feet will pass before your car even begins to slow down from 60 mph. So from the time you perceive a braking situation until the time your car comes to a complete stop, a total of 4.6 seconds elapses. During that time your car travels — it bears repeating — a total of more than 270 feet. That's almost the length of a football field. Of course, the faster you go, the more time and distance it takes to stop.

There are other factors as well, such as road conditions. When weather is bad, your braking distance grows exponentially. On wet pavement, total braking time increases from 4.6 seconds to 6.1 seconds, and total braking distance shoots up from 271 feet to 333 feet. And it gets worse. In snowy conditions, even with snow tires, total stopping time jumps to 10.6 seconds and 533 feet. As a basis of comparison, this is roughly the same distance — actually, a little further — as the same vehicle coming to a complete stop from 90 mph on dry pavement, an effective doubling of the braking distance

, remember to keep a "space cushion" around your vehicle at all times — ahead, to the sides and behind your car. This can be difficult to accomplish, especially in heavy traffic where everyone is darting in and out. How close is too close when it comes to following the car ahead of you? There's a handy "3-second rule." When the vehicle ahead of you passes a certain point, such as a sign, count "one-thousand-one, one-thousand-two, one-thousand-three." This takes about 3 seconds. If you pass that certain point before you finish counting, you are following too closely. We suggest a 4-second (or more) cushion in inclement weather.

Fourth, the tires you choose and their condition are another important, yet often overlooked, factor. See our articles, "Tire Safety: Don't Ignore the Rubber on the Road" and "Tires: Traffic Safety Tips" for all the details on tire selection and maintenance.

There are a few other factors that affect braking distances. As stated before, the heavier your vehicle is, the longer it will take to stop. Bear that in mind when you shop for a car or when you load it up. Also, the looser the road surface (gravel, dirt, mud), the harder it is to stop.

Antilock braking systems are designed to prevent tire lockup by automatically and rapidly "pumping" the brakes, potentially decreasing braking distances in extreme situations.

vehicles with four-wheel discs usually deliver shorter stopping distances and are less susceptible to fade (loss of braking performance due to heat).

Additionally, being aware of all the variables — your proximity to other vehicles, weather conditions, road surface — will help you judge proper speed and give you time to react to whatever comes your way.

Answer 7

weight of car-heavier=longer
speed-faster=longer
road conditions-wet/slippery=longer