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I got a question about torque

  1. Nov 16, 2008 #1
    Two people of different weights are sitting on a seesaw. The seesaw is not rotating. How would the lever arm of the heavier person compare with the lever arm of the lighter person?
  2. jcsd
  3. Nov 16, 2008 #2
    If the seesaw is free to rotate, the length of the lever arms are inversely proportional to the weight of the people. In other words, if one person weighs twice as much, their side of the seesaw has to be half as long from their centre of gravity to the pivot of the seesaw as the other person's in order to remain balanced.
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