학술논문
When equal masses don't balance.
Document Type
Article
Source
Subject
*FORCE & energy
*INERTIA (Mechanics)
*STUDENTS
*CHARTS, diagrams, etc.
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Language
ISSN
0031-9120
Abstract
We treat a modified Atwood's machine in which equal masses do not balance because of being in an accelerated frame of reference. Analysis of the problem illuminates the meaning of inertial forces, d'Alembert's principle, the use of free-body diagrams and the selection of appropriate systems for the diagrams. In spite of the range of these applications the analysis does not require calculus, so the ideas are accessible even to first-year students. [ABSTRACT FROM AUTHOR]