PURPOSE: To demonstrate two-dimensional collisions.

DESCRIPTION: Two battery-powered hoverpucks, as shown. Can be used to demonstrate a variety of two-dimensional collisions and motion. Velcro collars are available for inelastic collisions.

SUGGESTIONS:As the pucks are stored uncharged to extend battery life, please order early and allow 2 hours for charging.

REFERENCES:PIRA unknown.

EQUIPMENT: Two hoverpucks, as shown.

SETUP TIME: None (but note charging time above).