Calculating the Path of a Point on a Sliding Ladder
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Choose a point position on the ladder and watch the path it traces as the ladder slides along the wall.
Contributed by: Theodore Gray (March 2011)
Open content licensed under CC BY-NC-SA
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"Calculating the Path of a Point on a Sliding Ladder"
http://demonstrations.wolfram.com/CalculatingThePathOfAPointOnASlidingLadder/
Wolfram Demonstrations Project
Published: March 7 2011