Published In
American Journal of Physics
Document Type
Article
Publication Date
10-2016
Subjects
Physics experiments, Juggling, Ping-pong balls, Friction -- Equipment & supplies
Abstract
Juggling a spinning ball with a ping-pong paddle represents a challenge both in terms of hand-eye coordination and physics concepts. Here, we analyze the ping-pong ball’s motion, and explore how the correct paddle angle relates to the ball’s spin and speed, as it moves vertically up and down. For students, this requires engaging with concepts like momentum, angular momentum, free-body diagrams, and friction. The activities described in this article include high-speed video motion tracking of the ping-pong ball and the investigation of the frictional characteristics of the paddle. They can be done in a physics lab or at home, requiring only inexpensive or commonly used equipment, and can be undertaken by high school or college students.
DOI
10.1119/1.4964104
Persistent Identifier
http://archives.pdx.edu/ds/psu/19455
Citation Details
Widenhorn, R. (2016). The physics of juggling a spinning ping-pong ball. American Journal of Physics, 84(12), 936-942.
Description
This is the publishers PDF reproduced with permission. Available after twelve month embargo from original date of publication.
The version of record can be found here: http://dx.doi.org/10.1119/1.4964104