Like a safety belt, an air bag provides a force to stop a passenger's motion during a car crash. Which best describes how safety belts and air bags protect passengers?Multiple choice question.Both increase the time it takes to slow a passenger down, resulting in a smaller force on the passenger.Both increase the overall colliding mass, resulting in a smaller force on the passenger.Both decrease the time it takes to slow a passenger down, resulting in a smaller force on the passenger.Both decrease the overall colliding mass, resulting in a smaller force on the passenger.
Question
Like a safety belt, an air bag provides a force to stop a passenger's motion during a car crash. Which best describes how safety belts and air bags protect passengers?Multiple choice question.Both increase the time it takes to slow a passenger down, resulting in a smaller force on the passenger.Both increase the overall colliding mass, resulting in a smaller force on the passenger.Both decrease the time it takes to slow a passenger down, resulting in a smaller force on the passenger.Both decrease the overall colliding mass, resulting in a smaller force on the passenger.
Solution
The best description of how safety belts and air bags protect passengers is: "Both increase the time it takes to slow a passenger down, resulting in a smaller force on the passenger."
This is because both safety belts and air bags work by extending the time it takes for a passenger's motion to stop during a crash. By increasing this time, the force experienced by the passenger is spread out over a longer period, which reduces the peak force and therefore the potential for injury. This principle is a direct application of Newton's second law of motion, which states that the force acting on an object is equal to its mass times its acceleration. By increasing the time over which deceleration occurs, the acceleration is reduced, and therefore so is the force.
Similar Questions
Select all that applyWhich of these are true about safety belts?Multiple select question.Safety belts cause passengers to decelerate.Safety belts provide a force.Safety belts reduce a passenger's mass.Safety belts cancel out the force of impact.Need help? Review these concept resources.
A crash causes a car to come to a complete stop in a fraction of a second. What will happen to the passengers that are not wearing safety belts?Multiple choice question.They will continue to travel at the same velocity that the car was moving until a force stops them.They will accelerate to a velocity greater than what the car was moving at.They will stop at the same moment the car stops.Their velocity will not change much because they were sitting in the car not moving around in it.
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