> > I though I heard of sub 3 second time reported, not theorized. >
I recently read of a car that does 0 - 60 in 2.2 seconds. Tesla is FAR from optimum. > > I have never gotten an explanation I could understand of how C_friction can > exceed 1 as I have heard regarding dragsters. > I'm not sure why you would assume 1.0 is the mas coefficient of friction possible. Just aluminum to aluminum can be as high as 1.35. Friction Coefficients for some Common Materials and Materials Combinations Materials and Material CombinationsStatic Frictional Coefficient - *μs -* Clean and Dry SurfacesLubricated and Greasy Surfaces Aluminum Aluminum 1.05 - 1.35 0.3 http://www.engineeringtoolbox.com/friction-coefficients-d_778.html <http://www.engineeringtoolbox.com/friction-coefficients-d_778.html> The reason high horsepower drag cars can get a high coefficient of friction is because they put down fresh hot rubber on the track during their burnout (it's not just for show, it is required). They then back up and line the car up with those fresh rubber tracks. This results in hot sticky rubber to hot sticky rubber contact which results in a very coefficient of friction. That additional traction advantage continues down the entire pass, not just at the starting line. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20160211/4990cffb/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
