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John Rogers's Avatar
 
Join Date: Dec 1969
Location: chula vista ca usa
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Another math ??, this one can hit home

If you weight 180 pounds and you are racing your Porsche at 135 MPH and hit the wall at the CA Speedway, how much force is on the 5 point harness. Assume worst case with a wall angle or 90 degrees or so.

Old 10-30-2006, 07:15 PM
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Just thinking out loud
 
mattdavis11's Avatar
 
Join Date: Nov 2001
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we need to know how much kinetic energy is lost in this partially inelastic collision. Unless you know how much energy is absorbed by the car when you wad the thing up, no one can tell you the answer.
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Old 10-30-2006, 07:56 PM
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vott does ziss do?
 
ronin's Avatar
 
Join Date: May 2003
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I don't really think it matters. let's just say it's enough force to ruin your whole day
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Old 10-30-2006, 08:05 PM
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Re: Another math ??, this one can hit home

I'm no physicist but I know that it depends on how long it took you to stop. It's those sudden stops that kill you.
Old 10-30-2006, 08:19 PM
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My follow up question regarding this math problem:

Q: What's the last thing that goes through your head in that situation?














A: The windshield.





Ducking for cover...
-Z
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Old 10-30-2006, 08:35 PM
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vott does ziss do?
 
ronin's Avatar
 
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Quote:
Originally posted by Z-man
Ducking for cover...
-Z
naah, reaction time would be too slow and the steering wheel would get in the way
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Old 10-30-2006, 08:39 PM
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Hugh R's Avatar
 
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energy = 1/2 mass times velocity squared. Insert what ever other parameters that you want. You died, just like my friend John Goss did at Riverside in 1983 in his Aston Martin DB4GT.

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Old 10-30-2006, 09:24 PM
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