you are racing and doing 120 MPH which is 175.92 feet per second velocity.
figuring a drag factor of .7, which is most common roads...
IF you slam on the brakes to avoid something and skid, it will take you 685.71 feet to slide to a stop, assuming you dont hit anything first.
5280 ft in a mile. so it will take you more than 1/10th of a mile to stop
it will take 7.8 seconds for you to slide to a stop.
the speed of gravity is 32.2 feet per second (1 G -force)
if you strike something at 100 mph that is moving at 0 mph, you will feel a G force of 25, or 25 times the speed of gravity.
the shuttle astronauts feel 4 to 5 G's at launch.
nasa launches satellites at 20 G forces, because they dont have humans on board.
the max a human body can withstand is about 11 to 12 G forces, and that is for someone who is trained to handle G forces, such as a fighter pilot or an astronaut.
anything above 12 Gs will rip the inside of your body apart, even if your in a seatbelt, even with an airbag, even if your body NEVER contacts anything such as the dash. IE: if you experience a decelerating G force greater than 12, you will only do it once, because it will kill you. the paramedics may pull you out without a mark on your body, and you will still be dead from the internal injuries caused by the decelerating G forces on your body.
but i donno, you get 685 feet in which to slide without hitting something...(tree, pole, another car, wall, fence) maybe you'll get lucky and will be able to slide for over 1/10th of a mile without hitting anything.
Oh yeah, and if your doing 120mph it will take you 514.28 feet just to slow from 120 to 60. the remaining 171.42 feet is to slow from 60 to 0.
now, when they build a racetrack, they take all of the above into consideration. since 325 mph is the limit, they make sure that they build a track that allows enough time for the vehicles to stop. plus, at a track, you are in a controlled environment with no trees, poles, other vehicles that can pull in front of you, or maybe a wet spot on the road, or wherel someone spilled gravel or something.
now seriously, how smart is it to race on the street?
wait, before you answer that, if your doing the above 120, and a car pulls out in front of you 500 feet away and accelerates up to speed in a 40 mph zone, how long in seconds do you have to slow down enough to avoid it?
5.2 seconds is the answer.
how long if you were doing 40 and it pulled out right in front of you? .65 seconds.
see the difference speed makes? thats why they say speed kills...