Question

how the airbags work in a car?

Answer 1

The sensor is the device that tells the bag to inflate. ... The sensors receive information from an accelerometer built into a microchip. The airbag'sinflation system reacts sodium azide (NaN3) with potassium nitrate (KNO3) to produce nitrogen gas. Hot blasts of the nitrogen inflate the airbag.

Answer 2

the heating element ignites a chemical explosive . older airbags used sodium azide as their explosive mewer ones I se different chemical. as the explosive burns it generates a massive amount of harmless gas that floods into a nylon bag packed behind the steering.
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