IMPACT FORCES

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Impact Forces

The LONGER THE IMPACT TIME is, the MORE the IMPACT FORCE IS REDUCED

  • impact time: is the time where it physically hits you (for example)
  • impact force: how hard/ soft the force is that is acting when it hits (eg. you)
  • FORCE CHANGES MOMENTUM eg in a car

- crumple zones are at the front end and rear-end of a car to lessen the THE FORCE OF AN IMPACT and to INCREASE IMPACT TIME:

eg in a crash  it would hit the rubber rear-end on a rock but as the car is crushed from the rear-end the FORCE of that rock would be less until it physically hits an arm, for example and would probably just touch after nothing more is there to protect.

  • in a front-end impact: the momentum of the car is reduced
  • rear-end impact: (where the vehicle is struck from behind) the momentum of the car is increased. (important to remember)

why does making the impact time longer reduce impact force?

  • the impact time acts for a certain

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