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Underdamped oscillations of a mass between two springs
The oscillations of one mass "m" suspended between two different springs, assuming a friction force proportional to the velocity [minuscule], have been studied. For this purpose, an assembly for this system has been made. The movement of the mass is recorded with a smartphone and analysed...
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Published in: | Physics education 2022-11, Vol.57 (6), p.65010 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
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Summary: | The oscillations of one mass "m" suspended between two different springs, assuming a friction force proportional to the velocity [minuscule], have been studied. For this purpose, an assembly for this system has been made. The movement of the mass is recorded with a smartphone and analysed with "Tracker." It is obtained that the graph of the position of the mass "m" in function of the time is similar to that of an underdamped harmonic oscillator. The registered data with "Tracker" are exported to Excel and fit to a nonlinear model through the expression x(t)= Ae[superscript -lambda t] sin(wt + [alpha]) . The nonlinear equation of motion is numerically solved with the free "Octave" package. This solution es very sensitive to the mass of the particle and the stretching of the springs. |
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ISSN: | 0031-9120 1361-6552 |
DOI: | 10.1088/1361-6552/ac8409 |