Problem-based Learning with Video Analysis: The Case of the Variable-Mass Atwood Machine. Revista Cubana de Física, UTC, v. 42, n. 2, p. 87–95, 2025. Disponível em: https://www.revistacubanadefisica.org/index.php/rcf/article/view/73. Acesso em: 16 dec. 2025.