Trying to find out the force a car endures during a crash test

[EGGO]

Assuming that the mass of the car is 2000kg and we know the crash tests are about 35mph, I need to find out the time it takes for the car to reach that point so I can find the acceleration.

The thing is, it's hard to find a crash test video that shows the amount of time from start to the crash.

I'm doing this to do calculations for an ad, but first I need to see the end result for car crashes, trying to figure out the force it takes for a car to crumple.

 

[jlee]

You need to find out the time it takes a car to reach 35mph..?

 

[EGGO]

"acceleration = (final velocity - original velocity) / time" ?

 

[Fenixgoon]

Originally posted by: EGGO
"acceleration = (final velocity - original velocity) / time" ?

average acceleration

but for a sufficiently small time interval, say, 0.001 - 0.01 seconds, you can assume (to get a rough estimate) that F = change in momentum / change in time and determine the force, time, or momentum of a body given that you have 2 of the 3 variables

 

[Epic Fail]

were you hit by a car?

 

[EGGO]

Oh wait, that's right. Thanks Fenixgoon, I see my mistake. Jeez, it's been years since I worked with physics that I forgot which goes where and which to use.

35-0 in an instant of time. Looks to be about .1 second.