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Friction of a train

ValeryOchkov
24-Ruby IV
24-Ruby IV
‎May 11, 2014 01:57 AM
‎May 11, 2014 01:57 AM

Friction of a train

Do you know better model of friction?

See please picture and attach (Mathcad 15 with only fixed or adaptive methods of ODEs solution) and Prime (with t.e<5.5 hr)..

tunel-friction-1.png

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tunel-friction-1.mcdx.zip
tunel-friction-1.xmcd.zip
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