Experiment 5

# Experiment 5 - use software on a computer to track the position of the puck From the position motion along a series of points we can calculate the

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Gage Morris gmm643 Lab Partner: Lucas Experiment 5: Motion Under a Central Force Introduction: For this lab, we are testing the theory that an object with motion that has a constant central force will have a constant angular momentum. To test that theory, we have a table with holes in it through which air is pumped to create the least friction possible. In the middle of the table is the central post that can rotate. Attached to the central post by rubber band is a puck. To see if the puck experiences constant angular momentum, we launched the puck by hand and used a camera video to track its motion. From the video of the puck as it moves is recorded we can
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Unformatted text preview: use software on a computer to track the position of the puck. From the position motion along a series of points, we can calculate the area of small triangles that are present during the pucks motion. Keplers law states that if the area of the triangle changed, it means that the angular momentum has changed. My theory is that the puck will not experience constant angular momentum because there is still some friction present on the table. It is obvious that the friction is there because the puck after about 20s has completely stopped....
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## This note was uploaded on 11/17/2010 for the course PHY 56630 taught by Professor Coker during the Spring '10 term at University of Texas at Austin.

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