Advice 1: How to calculate braking distance

It is known that the braking path of the vehicle depends on many different factors. But there is a universal formula, which allows it easily to calculate: just substitute the required values.
Instruction
1
The brake way of the car – the distance that the vehicle passes from the moment the brake system until it stops completely. The length of the braking path depends on the speed of the vehicle, method of braking, and road conditions. For example, at a speed of 50km/h the average braking distance of approximately 15 m and at 100 km/h – 60 m.
2
Note that the brake way of the car depends on many factors such as: speed, vehicle weight, road surface, weather conditions, method of braking, and the condition of the wheels of the vehicle and its braking system.
3
Determine the braking path of the vehicle according to the following formula: S = Ke x V x V/(254 x FS), where
S – a brake way of the car in meters
Ke – brake ratio, which is equal to 1 car,
V – vehicle speed (km/h) at the beginning of braking,
FS – coefficient of grip (different indicators, depending on weather conditions)
0.7 – dry asphalt,
0.4 – wet road
0.2 – Packed snow,
0.1 – icy road.
4
Please note that there are several different ways of braking, namely: smooth, abrupt or gradual and intermittent. Use smooth braking in a relaxed atmosphere. Perform a gradual increase of pressure on the brake pedal, and this will ensure smooth reduction of speed of the car. It is in this method of braking you get the big brake way.
5
Remember that sharp braking when you strongly press the brake pedal, usually leads to blocking of wheels, and hence to lose control and skid. If you choose the stepped braking, you press on the pedal, but each subsequent press do it with great effort, and so on until a complete stop.With intermittent braking much press on the pedal, almost to the point of wheel lock, and then release the pedal. Follow the same principle before the car fully stops.

Advice 2: How to determine stopping distance

Any motorist should be able to determine the braking path. From this often depends the safety of the driver and those in the car besides him. What is the braking path and how to define it, to avoid trouble on the road?
You will need
  • car, road
Instruction
1
The brake path is the distance that the car passes after the brake system and to a final stop. The braking distance depends on many factors: the speed of the vehicle, method of braking and the conditions, that sets expensive. The greater the speed, the greater the braking path.
2
In addition to the aforementioned factors, the most important road surface and its condition, weather, weight of vehicle, as well as the technical characteristics and the condition of the wheels and braking system. The minimum stopping distance is on a dry paved road, the largest is on the ice. Accordingly, along with the increase of braking distance is increasing the danger.
3
Of course, in an emergency, to calculate a braking path is extremely difficult, but you should imagine the possibilities for your car in this plan to making the right decision at the right time. There is a formula that can determine the braking path. Motorists are advised to use it before getting behind the wheel, as this can prevent many unwanted incidents.
4
The formula is: S = Ke x V x V/(254 x FS). It is necessary to explain the legend. S is stopping distance in meters, Ke is the coefficient of inhibition, which for passenger cars is always equal to unity, V is the initial speed when braking, measured in km/h, and FS is the coefficient of traction, depending on its state (dry pavement – 0,7, wet the road is 0.4, in the case of compact snow is 0.2, and 0.1, if the road is covered with ice). Determination of braking distance is a simple and useful effect, available to each motorist. It is sufficient to substitute in the formula the numbers appropriate to the specific situation and settings of your machine.
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