wallingd
MB Enthusiast
- Joined
- Jan 8, 2005
- Messages
- 2,039
Help my flask is broken and I dropped my pen over the edge of the platform !
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Anytime I've seen a 66 at work it's been more of a heat shimmer off the top rather than a grey mass of particulates.
Maybe it's a plot by the 37s to keep themselves going longer and into a fifth decade.
Train spotters.....yawn, yawn.
And your answer is.?? Go on..
Quote:
Certainly nowhere near that magnitude of difference.
http://www.engineershandbook.com/Tab...efficients.htm
Rolling resistance is just a different form of static resistance.
Thats as maybe. But that table doesn't have figures for the interaction of rubber against tarmac. And the whole point of those two materials is that they DO provide good grip under most conditions. If that were not the case then we would all be skidding around uncontrollably. I am unconvinced that COF is the same beast as RR. Similar, but different.
RR depends on so many things, not least being materials in contact, bearing quality, wind resistance (speed), gradient and weight to name just 4 or 5.
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