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# Airbags. watch

1. Explain how an aiirbag responds to an impact and if possible link it to a mathematical relationship
2. (Original post by michele1)
Explain how an aiirbag responds to an impact and if possible link it to a mathematical relationship
Airbags increase the impact time in the collision between the passenger/driver and the car. This reduces the force experienced by the passenger/driver. You can link this to Newton's second law: force = mass x acceleration. Acceleration is the rate of change of velocity, the passenger slows down over a longer period of time, decreasing the acceleration, which thus reduces the force experienced by the passenger.

Alternatively, you can link it to an alternative form of f=ma, which is force = change in momentum/time and argue how a greater impact time decreases the force experienced, because you are dividing by a greater number.

Hope it helps!
3. Life saver!! Thankyou very much!

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