Title

Rolling Motion and Crumpled Surfaces

Document Type

Article

Publication Date

8-1-1995

Department

Physics and Astronomy

Abstract

We discuss some aspects of a paper which appeared recently in this journal [F. F. Lima, V. M. Oliveira, and M.A.F. Gomes, Am. J. Phys. 61, 421-422, 1993] in which the fractional dimension of rolling crumpled surfaces is measured experimentally. We show that this experiment may not actually be measuring fractal dimension kinematically at all. In addition, we report a variation of their experiment using. nonfractal grooved cylinders. The results indicate that large irregularities on the surface of ''rolling'' objects may lead to errors in the dynamic measurement of the dimension of crumpled surfaces. (C) 1995 American Association of Physics Teachers.

Comments

©American Journal of Physics

Publisher Version

Publication Title

American Journal of Physics

Volume

63

Issue

8

First Page

746

Last Page

749