Answer:
1. In baseball, a ball that is only struck with a small part of the bat is not in contact with the bat for a long period of time so the change in momentum, or impulse, is small and the ball does not travel very far. However, if the bat strikes the ball squarely, the force is exerted for a longer time resulting in a greater change in momentum, or greater impulse, and the ball travels very far.
2. Air bags in cars are designed with impulse, or momentum change principles. When a driver gets into an accident their momentum carries them forward into the steering wheel. By putting an airbag in the car, a smaller force is exerted over a longer period of time to change the momentum of the driver to a stop. Without the airbag, a large force is exerted over a short time causing more damage to the driver.
3. A car traveling down the road is slowed down slightly when the brakes are just gently tapped. The force of the brakes is exerted over a small time resulting in a small impulse and a small change in the momentum of the car.
Explanation:
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