ERIC Number: EJ985438
Record Type: Journal
Publication Date: 2012-Jul
Pages: 5
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0143-0807
EISSN: N/A
Fall with Linear Drag and Wien's Displacement Law: Approximate Solution and Lambert Function
Vial, Alexandre
European Journal of Physics, v33 n4 p751-755 Jul 2012
We present an approximate solution for the downward time of travel in the case of a mass falling with a linear drag force. We show how a quasi-analytical solution implying the Lambert function can be found. We also show that solving the previous problem is equivalent to the search for Wien's displacement law. These results can be of interest for undergraduate students, as they show that some transcendental equations found in physics may be solved without purely numerical methods. Moreover, as will be seen in the case of Wien's displacement law, solutions based on series expansion can be very accurate even with few terms. (Contains 2 figures.)
Descriptors: Undergraduate Students, Higher Education, Science Education, Science Instruction, Equations (Mathematics), Physics, Mathematical Formulas, Motion
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A