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Originally Posted by sudszy
Colin, I dont think I could have made the case any simpler:
http://www.fordforums.com.au/showpos...7&postcount=87
Colin, in most collisions a lot of the vehicles KE goes into rearranging the metal work. This doesnt guarantee the safety of the occupants, its how effective that process is in reducing the acceleration of the occupant, having them come to a gradual stop, rather than a quicker one by hitting something hard inside the car, like the windscreen.
Ive written about the "energy" thing in another thread: http://www.fordforums.com.au/showpos...0&postcount=54 |
I tend to agree with you. The better the structure of the car is at dispersing the KE of vehicle over a greater time frame, the less energy is transferred to the occupants. I also agree that a vehicle with more mass when colliding with a vehicle of lesser mass will suffer less deceleration than the smaller car. In the case of a large ridged vehicle colliding with a solid object, then the KE energy will more directly and suddenly be transferred to the occupant. I take your point about the body movement and the force at which it moves and the value of airbags at decreasing the bodies deceleration; but I would tend to think that the better the structure of the car is at dispersing the KE, the less work the airbag needs to do.