Skip to content
For a limited time, receive 20% off this product using code COM2023 at checkout

Center of Mass Demonstrator - Roller & Ramp - Rolls Up Inclined Plane - Clear Coated Wood Construction, 17"L

SKU PH0349DCP
Original price $36.99 - Original price $36.99
Original price
$36.99
$36.99 - $36.99
Current price $36.99
  • DEFIES GRAVITY || Easy use - place roller cone at bottom of the ramp, let go, and watch it roll up and sit in the grooves
  • SIMPLE & ELEGANT || Apparatus comprised of an inclined A-shaped ramp with a double-ended cone roller
  • DURABLE CONSTRUCTION || Made of durable wood and clear coated for decades of use
  • FULLY ASSEMBLED || Apparatus comes fully assembled - no assembly required
  • GREAT FOR PHYSICS CLASSROOMS OR OFFICE DESKS || Designed for science classrooms, but also makes a great executive gift or desk ornament
In Stock - 24 Available
Expected to Ship Mon Feb 06
Original price $36.99 - Original price $36.99
Original price
$36.99
$36.99 - $36.99
Current price $36.99
what's this?
Some items have built-in volume discounts, but if you'd like a quote, call us or click below. You may get a better deal than the rates listed here!
Large or special order? Call (585) 360-2295 or

This ingenious apparatus makes a great physics demonstration, executive gift, or desk toy. Place the double cone roller at the bottom of the inclined plane and watch it travel "up" the ramp with no applied force. The physics behind the demonstration is that as the roller moves up the ramp the center of mass is actually moving downward which drives the roller up the ramp itself. Amaze your students and colleagues. Constructed of durable wood and clear coated for decades of use. Size of ramp: 17"L x 5"W X 2"H.