@article{ivchenko_2022,  title={Faster or slower? Body constrained traveling along vertical curved path},  volume={44},  ISSN={1806-1117},  url={https://doi.org/10.1590/1806-9126-RBEF-2022-0065},  DOI={10.1590/1806-9126-RBEF-2022-0065},  journal={Revista Brasileira de Ensino de Física},  publisher={Sociedade Brasileira de Física - SBF},  author={Ivchenko, Vladimir},  year={2022},  pages={e20220065} }