| VOZDECKÝ, Luboš, Jiří BARTOŠ and Jana MUSILOVÁ. Rolling friction - models and experiment. An undergraduate student project. European Journal of Physics. Velká Británie: IOP Publishing, 2014, vol. 35, No 5, p. 1-16. ISSN 0143-0807. Available from: https://dx.doi.org/10.1088/0143-0807/35/5/055004. |
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@article{1187482,
author = {Vozdecký, Luboš and Bartoš, Jiří and Musilová, Jana},
article_location = {Velká Británie},
article_number = {5},
doi = {http://dx.doi.org/10.1088/0143-0807/35/5/055004},
keywords = {rolling friction; physics education},
language = {eng},
issn = {0143-0807},
journal = {European Journal of Physics},
title = {Rolling friction - models and experiment. An undergraduate student project.},
volume = {35},
year = {2014}
}
TY - JOUR
ID - 1187482
AU - Vozdecký, Luboš - Bartoš, Jiří - Musilová, Jana
PY - 2014
TI - Rolling friction - models and experiment. An undergraduate student project.
JF - European Journal of Physics
VL - 35
IS - 5
SP - 1-16
EP - 1-16
PB - IOP Publishing
SN - 01430807
KW - rolling friction
KW - physics education
N2 - In this paper the model of the rolling friction (rolling resistance) is studied theoretically and experimentally on the undergraduate level of the fundamental course of general physics. Rolling motions of a cylinder along horizontal or inclined planes are studied by simple experiments, measuring deformations of the underlay or of the rolling body. The rolling of a hard cylinder on a soft underlay as well as of a soft cylinder on a hard underlay is studied. The experimental data are treated by the open source software Tracker, appropriate for the use on the undergraduate level of physics. Interpretation of results is based on elementary considerations comprehensible to university students – beginners. It appears that the commonly accepted model of rolling resistance based on the idea of a warp (little bulge) on the underlay front of the rolling body does not correspond with experimental results even for soft underlay and hard rolling body. The alternative model of the rolling resistance is suggested in agreement with experiment and the corresponding concept of the rolling resistance coefficient is presented. In addition to the obtained results we can conclude that the project can be used as a task for students in practical exercises of the fundamental undergraduate course of general physics. Projects of the similar type effectively contribute to the development of physical thinking of students.
ER -
VOZDECKÝ, Luboš, Jiří BARTOŠ and Jana MUSILOVÁ. Rolling friction - models and experiment. An undergraduate student project. \textit{European Journal of Physics}. Velká Británie: IOP Publishing, 2014, vol.~35, No~5, p.~1-16. ISSN~0143-0807. Available from: https://dx.doi.org/10.1088/0143-0807/35/5/055004.
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