The Atwood's machine as a tool to introduce variable mass systems

Details The Atwood's machine as a tool to introduce variable mass systems The Atwood's machine as a tool to introduce variable mass systems

2011-10-27

arxiv.org/abs/1110.6022v1

Physics

Physics Education

Accepted for publication in Physics Education

Scientific paper

This paper discusses an instructional strategy which explores eventual similarities and/or analogies between familiar problems and more sophisticated systems. In this context, the Atwood's machine problem is used to introduce students to more complex problems involving ropes and chains. The methodology proposed helps students to develop the ability needed to apply relevant concepts in situations not previously encountered. The pedagogical advantages are relevant for both secondary and high school students, showing that, through adequate examples, the question of the validity of Newton's second law may be introduced to even beginning students.

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