PIRA: 1D50.40

Summary of the Demo

Tension and gravity provides the centipetal force required to keep a cup of water in circular motion. 

Equipment List

  • Hanging Platform
  • Plastic Cup
  • Water
  • Paper Towels

Set-up/Demonstration Instructions

  • Fill the cup a little more than half cup.
  • Set the cup in the platform.
  • Swiing back and forth until you have the feel for the weight. 
  • Seing the platform in a complete circular motion as many times as you would like. 
  • Stop the circular motion by swinging it to its perpenducular position and allowing it to swing back and forth. 

whirling water demo