Compare the amount of flexing of the 2 metal hoops when the carts collide. What does this tell you about the size of the forces acting on the carts during the collision?
(For frame-by-frame viewing, click the “.mp4″ link. When the video plays in your browser using Quicktime, pause the video before the collision and use the left-right arrow keys to advance the video one frame at a time. Compare the sizes of the hoops!)
FAST vs. SLOW (same mass)
HEAVY vs. LIGHT (same speed)
HEAVY (moving) vs. LIGHT (at rest)
HEAVY (at rest) vs. LIGHT (moving)


Frank,
Very well done! Would be great to use to estimate interaction times for M&I….
Thanks, Paul!
Nice film Frank. Can’t wait to use it in January (why, there IS a reason to come back from break).
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