Abstract
The dynamics of a traditional toy, the yoyo, is investigated theoretically
and experimentally using smartphone' sensors. In particular, using the
gyroscope the angular velocity is measured. The experimental results are
complemented thanks to a digital video analysis. The concordance between
theoretical and experimental results is discussed. As the yoyo is a ubiquitous,
simple and traditional toy this simple proposal could encourage students to
experiment with everyday objects and modern technologies.
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