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Revista Brasileira de Ensino de Física

versão impressa ISSN 1806-1117versão On-line ISSN 1806-9126

Resumo

SILVA, E. S.. Study of the relationship between circular uniform movement and simple harmonic movement using video analysis of a bicycle wheel. Rev. Bras. Ensino Fís. [online]. 2018, vol.40, n.2, e2301.  Epub 04-Set-2017. ISSN 1806-1117.  http://dx.doi.org/10.1590/1806-9126-rbef-2017-0152.

In this article we discuss the results of a video analysis that allows us to study the relationship between uniform circular motion (UCM) and simple harmonic motion (SHM), from the filming of the circular motion of a bicycle wheel. Considering a fixed point P at the wheel's edge, in a circular motion of radius R and angular coordinate φ, we can obtain its Cartesian components x and y by means of video analysis, observing that they oscillate over time. Assuming the motion of P as an MCU, we obtain analytically the x and y coordinates, comparing them with the coordinates obtained by video analysis. The model allows explicit study of the relationship between UCM and SHM, in addition to providing the bicycle radius with accuracy of 1%.

Palavras-chave : UCM; SHM; Video analysis; Mathematical modeling.

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