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no protection
It absorbs some of the impact.
AirBag, impact sensor, Signal Sensor, Clock Spring.
An airbag depoys when a hard impact its the vehicle and the airbag automatically deploy's before the driver and passengers hit the front of the car/seat.
Speed is relative. The impact threshold for the process is based on a transient impact of 5 to 7g, at a crash speed of between 5 to 15 mph. The variance is based on several factors, including angle of impact, its characteristics (meaning a direct, or deflected secondary hit), transient velocity, or other pressure metrics, as established by the on-board airbag system instrumentation.
If your Kalos airbag light will not go out, it typically means that the airbag is faulty or there's a problem within the control system of the vehicle. When this occurs, the airbag may not properly deploy upon impact.
It is a must-have. The airbag comes to the owner's rescue when he hits a hard surface or has a hard impact.
it will deploy if hit hard enough.
To prevent injury by cushioning the driver and passengers from impact.
Airbag deployment can happen at any speed. It's not about the speed, but rather the impact that the car feels to deploy the bags.
no protection
The computer looks at the info fromt he impact sensors, sends voltage to the ignitor in the airbags, and the airbag "explodes".