What is the function of the airbag system in a vehicle with respect to the seatbelt?

Question

DentroTest · Accepted Answer

The airbag is a passive safety device designed expressly to work in combination with the seatbelt, never in isolation or as a substitute for it. While the seatbelt restrains the body, preventing it from being thrown out, and absorbs the primary deceleration, the airbag deploys in milliseconds to cushion the impact of the head and chest against rigid elements such as the steering wheel or the dashboard. Dispensing with the seatbelt and relying only on the airbag is extremely dangerous, since the occupant would hit the bag while it is in the middle of inflating at high speed, which can cause serious or fatal injuries.

What is the function of the airbag system in a vehicle with respect to the seatbelt?

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