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…