Grimly Curmudgeon wrote:
On Mon, 10 Sep 2012 01:16:38 -0700 (PDT), harry
wrote:

There is always "microslippage" between wheel and road. Even more when
cornering.

TNP has a fizziks degree; he knows better than everyone who doesn't.


No I have an engineering degree, which means I talk about whats
important, not what might theoretically be one ten thousandth of the
observed and meausured result.


The dominant rolling resistance of a tyred car is down to deformation
and hysteresis. That is not normally called 'friction'. Nor is what
'friction' the tyre generates due to pico slippage in any way more than
such an infinitesimal fraction that it makes any sense to talk about it
unless of course you are in danger of looking a prat and losing an argument.



End of.


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