BULLARD, ALTHEA ANN City/State: ST GEORGE / UT PCF Number: 175097 . Arrest Date: 01:09:19 01/29/18 Agency: Washington County Sheriff RELEASED FROM CUSTODY
How fast do you need to be going when you hit something for your air bags to deploy? The crash forces are equivalent to a head-on collision with an immovable barrier... How fast do you have to be going for the air bags to go off? Air bags are set to deploy when you hit something at a mild 8-14 miles per hour... How fast do you have to be going for the air bags to deploy in a car? You have to be in a collision that is at least 10 mph for the airbags to deploy in...
Inside the airbag is a gas generator containing a mixture of NaN3, KNO3, and SiO2. When the car undergoes a head-on collision, a series of three chemical reactions inside the gas generator produce gas (N2) to fill the airbag and convert NaN3, which is highly toxic, to harmless glass.Sodium azide (NaN3) can decompose at 300oC to produce sodium metal (Na) and nitrogen gas (N2). typical airbag contains 50.0 g of sodium azide, NaN3. Upon impact, the airbag deploys and inflates within 40 milliseconds to a volume of about 60 L, at a velocity between 150 and 250 mph. The airbag inflates due to the decomposition reaction of NaN3 and fills with nitrogen gas in the following reaction: