TOPIC:

ID Code: B1-07
Purpose: Demonstrate a center of mass paradox
Description: When the double cone is placed on the narrow end of the V-shaped rails (at left) and released it rolls to the wide end (at right). The double cone appears to be rolling uphill, but in reality the center of mass is moving down.
Demonstration B1-06 is a larger version of this demonstration.
Availability: Available

See the Physics Question of the Week for 4/28/2014 for an example of how this demonstration can be used in class interaction and discussion: lecdem.physics.umd.edu/question-of-the-week-archive.html