Medida de la longitud de rodadura.

Ricardo López Rodríguez


In this paper, we propose an experiment to evaluate this coefficient, analyzing what it is the shown in the literature: keeping constant other parameters, a big wheel requires a lower force than a small one to displace it. The first results show this conclusion. In particular, the proposed experiment lies in letting oscillate an axle on a slightly curved plate. When attacking the problem from the energy conservation and the motion differential equation, a damped oscillation should be obtained but this is not the case, as it is explained in the paper. The paper also shows that resistance rolling allows us the introduction of the concept of internal energy, both mathematically and macroscopically, together with a particular case of the first principle of thermodynamics.

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