Comment on 'Peculiarities in the gravitational field of a filamentary ring' [Am. J. Phys. 87, 384-394 (2019)]

摘要

In a recent article, the dynamics of a particle in the gravitational field of a uniform ring in the plane of the ring was examined. Parts of this work duplicate the results of previous work by West et al. in a paper published in this journal in 1998, and additional work extending those results in a paper by Tobin and West in 2006. (C) 2019 American Association of Physics Teachers.