Real and “Ghost” Masses in a Statics Problem

Real and “Ghost” Masses in a Statics Problem

The location of the center of mass of a beam can be calculated using the values of the reaction forces at its ends. The success of an apparently erroneous solution leads the authors to seek and find an explanation for why this solution works. We illustrate the procedure with an asymmetric beam.

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Veröffentlicht in:The Physics teacher 2019-03, Vol.57 (3), p.164-165
Hauptverfasser: Binder, P.-M., Gorospe, Beverly A., Singer, Solomon
Format: Artikel
Sprache:eng
Schlagworte:
Computation
Light
Physics
Science Instruction
Scientific Concepts
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Beschreibung
Zusammenfassung:The location of the center of mass of a beam can be calculated using the values of the reaction forces at its ends. The success of an apparently erroneous solution leads the authors to seek and find an explanation for why this solution works. We illustrate the procedure with an asymmetric beam.
ISSN:0031-921X
1943-4928
DOI:10.1119/1.5092475