Air bag

[lobices]

...who can tell me at what speed an air bag open after a impact?...

thanks...

[Tormod]

Quim,

 

you have such good questions...it takes me forever to find the answers. Which is a good thing, since it helps me learn new stuff.

 

Since I have never ever seen an airbag inflate, and I believe I probably wouldn't have thought of timing it if I ever did I looked around the web.

 

It looks like they open and inflate in less than 1/20th of a second. I don't know exactly how long it takes from the sensors notice the impact until the inflation starts, but I suspect it is an electrical signal and thus it moves at the speed of light (so it's instant in this situation).

 

Here's a nice page:

How does an airbag work?

 

Tormod