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Old 02-14-2008, 09:03 PM   #17 (permalink)
trebuchet03
MechE
 
Join Date: Dec 2007
Location: Bay Area
Posts: 1,151

The Miata - '01 Mazda MX-5 Miata
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Quote:
With a half-ton of iron over my front wheels, obviously I did get a grip and stopped.
Again, this is not how physics works

KE = .5*m*v^2
Friction = Cf*m*g

More KE means more energy to dissipate while braking. You're increasing friction force while increasing the amount of power necessary to come to a stop in the same amount of time. As your ABS kicked on, that's case and point that your weight was not why you were able to stop in time... You have the braking power to lose grip with the road (and you did - ABS kicked on to manage it).

People do buy cars for different reasons... I may not agree, but accept this. But physics applies the same for everyone and I personally would like to dissolve these myths about heavy vehicles that are based on incorrect intuition.
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