It depends on many variables, vehicle type, it's weight, tires, weather, road material( gravel, blacktop, concrete, driver reaction time. A good general rule of thumb is to leave 1 1/2-2 car lengths per 10mphs. An example: 9-12 car lengths at 60 mph. It might seam like alot but at that speed you travelling 88 ft/sec. The average family sedan requires 130ft to stop from 60mph(the average sedan being 16ft +/- =8.1 length leaving 12ft to spare). That is assuming you brake instantly, the 2 car lengths would give you a "1/2 a second" to react, which I think everyone would say it's much. With bad weather rain,snow,fog that should double or triple.
It means the minimum distance the car moves between the time the driver decides to stop and the time the car actually stops. The distance can never be zero, and any pedestrian or animal who happens to be crossing in front of the car at a distance less than the stopping distance is simply out of luck.
The stopping distance of a car increases.
Stopping distance also increases.
Total stopping distance is the thinking distance (The distance it takes for your brain to process the event and decide to stop the car) and the stopping distance (The distance it takes to stop the car once deceleration has begun) added together.
The greater the mass of the car and its occupants the longer the stopping distance that is required for the vehicle. Stopping distance is calculated by taking into account car mass and reaction time in braking
Total stopping distance is the thinking distance (The distance it takes for your brain to process the event and decide to stop the car) and the stopping distance (The distance it takes to stop the car once deceleration has begun) added together.
The more friction, the quicker the vehicle will stop, meaning less stopping distance.
Less traction on a wet road so the stopping distance increases.
No - the stopping distance depends on the speed of the vehicle - it' not simply a case of 'doubling-up'.
Stopping distance
about 22 metres
3 meaters