how can airbags help in preventing serious injury in a car collision?
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Answer:
because they blow like balloons and defenses our body
The Use of the Airbag
The purpose of an airbag is to help the passenger in the car reduce their speed in collision without getting injured.
Objects in a car have mass, speed and direction. If the object, such as a person, is not secured in the car they will continue moving in the same direction (forward) with the same speed (the speed the car was going) when the car abrubtly stops until a force acts on them.
Every object has momentum. Momentum is the product of a passenger's mass and velocity ( speed with a direction). In order to stop the passenger's momentum they have to be acted on by a force. In some situations the passenger hits into the dashboard or windshield which acts as a force stopping them but injuring them at the same time.
An airbag provides a force over time. This is known as impulse. The more time the force has to act on the passenger to slow them down, the less damage caused to the passenger.
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