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Brian Ellis

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    Santa Clara, CA

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  1. The Insurance Institute for Highway Safety has a lot of crash videos -- this one was specially created to show how safety has improved over the last 50 years. The driver of the classic car clearly experiences a higher force in less time, while the driver of the modern car has his momentum stopped over a longer time with a smaller force.
  2. This video shows an example of how to control bringing a person's momentum to zero. The athlete rolls to increase the time of impact, which allows him to stop his momentum with a smaller force.
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