How to determine the centre of mass of bodies from image modelling

• Tipo: Artigo em Revista Científica Internacional
• Data: 2016

Autores

Dias, MA (Autor) Outra; Carvalho, PS (Autor) FCUP; Rodrigues, M (Autor) Outra

Revista

Título: Physics Education

Vol. 51

Página Final: 025001

ISSN: 0031-9120

Editora: Institute of Physics Publishing

Indexação

Scopus - 9 Citações

Classificação Científica

CORDIS: Ciências Físicas > Física > Mecânica clássica

FOS: Ciências sociais > Ciências da educação

Outras Informações

ID Authenticus: P-00K-JSY

DOI: 10.1088/0031-9120/51/2/025001

Abstract (EN): Image modelling is a recent technique in physics education that includes digital tools for image treatment and analysis, such as digital stroboscopic photography (DSP) and video analysis software. It is commonly used to analyse the motion of objects. In this work we show how to determine the position of the centre of mass (CM) of objects with either isotropic or anisotropic mass density, by video analyses as a video based experimental activity (VBEA). Strobe imaging is also presented in an educational view, helping students to visualize the complex motion of a rigid body with heterogeneous structure. As an example, we present a hammer tossed with translation and rotation. The technique shown here is valid for almost any kind of objects and it is very useful to work with the concept of CM. © 2016 IOP Publishing Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica