most recent 30 from http://mathoverflow.net 2013-05-22T09:23:01Z http://mathoverflow.net/feeds/question/27908 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/27908/how-to-calculate-the-rolling-resistance-of-a-wheel-over-an-obstacle helloworlder 2010-06-12T06:13:02Z 2010-06-12T09:00:09Z

<p>Imagine a bicycle travelling at speed, and then rolling over a log. What are the principles behind calculating the force that is required to roll a wheel over an obstacle?</p>