TED KINSMAN / SCIENCE PHOTO LIBRARY TED KINSMAN / SCIENCE PHOTO LIBRARY
This is a demonstration of a ball (2.5cm diameter) rolling, from left to right, down an incline, slowing down, and then speeding back to where it started. This demonstrates the use of the kinetic energy, potential energy, rolling energy, and friction. The image compiles photos taken every .025 seconds with a flash that illuminates the scene at 40 hz.
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