Seung-Jae You Sunghun Jun. Safety OF CAR AND PHYSICS (HOW THINGS WORK?). Which parts of the car protects the driver from accident?. 1. Tires ( Automobiles Tires and Friction) 2. Seatbelt ( Seatbelt and Inertia) 3. Airbag ( Airbag and Momentum & Impulse)
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Seatbelt increases the time of impact (impulse and momentum) so that it results lesser impact
- Momentum (p) and Impulse (FDt)
- p = mv, FΔt = mΔv