Skip to main navigation Skip to search Skip to main content

An exact solution for a particle in a velocity-dependent force field

  • Julio M. Yáñez
  • , Gonzalo Gutiérrez
  • , Felipe González-Cataldo
  • , David Laroze
  • Universidad Católica del Norte
  • Universidad de Chile
  • University of California at Berkeley

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We revisit the classical mechanics problem of a particle moving under the influence of a force that depends on its velocity. Using the properties of the rotation matrix and associated operators, we show that it is possible to find an exact analytical solution to a number of problems where the differential equation of motion depends on the velocity. First, we apply our method to the well-known cases of a particle under the influence of the Lorentz force and Coriolis force, providing the complete analytical solution in each case for the motion of the particle in three dimensions. We also show that the complete solution can be obtained when the centrifugal force is included, showing the applicability to cases where there is simultaneous dependence on the position and velocity. This method, which is not currently discussed in a typical course in elementary mechanics, provides an alternative approach to the traditional methods that are used to solve these types of problems.

Original languageEnglish
Pages (from-to)1103-1112
Number of pages10
JournalAmerican Journal of Physics
Volume89
Issue number12
DOIs
StatePublished - 1 Dec 2021

Fingerprint

Dive into the research topics of 'An exact solution for a particle in a velocity-dependent force field'. Together they form a unique fingerprint.

Cite this