Visualizing Newton’s 3rd Law with Colliding Carts

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)

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FastSlow.MP4 (1932 KB)

HEAVY vs. LIGHT (same speed)

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HeavyLight.MP4 (3646 KB)

HEAVY (moving) vs. LIGHT (at rest)

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HeavyIntoLight.MP4 (7620 KB)

HEAVY (at rest) vs. LIGHT (moving)

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LightIntoHeavy.MP4 (4048 KB)

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4 responses to “Visualizing Newton’s 3rd Law with Colliding Carts

  1. Frank,

    Very well done! Would be great to use to estimate interaction times for M&I….

  2. Nice film Frank. Can’t wait to use it in January (why, there IS a reason to come back from break).

  3. Pingback: Moment(um) of Creation | Non-Inertial Teaching

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