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The physics of human motion (re. a sword swing)

  1. May 13, 2003 #1
    Hello all, another question.

    Can anyone explain to me please the details of, for example, a person swining a sword? How much body mass is involved, from which point do I measure the arc of the swing, how much energy is involved, et cetera?

    Thanks.
     
  2. jcsd
  3. May 15, 2003 #2
    Assuming that you can throw ~10 lb sword (or other 10 lb mass) about 15-20 ft up you get K = P = mgh ~ 20-25 Joules, sword speed v=(2gh)1/2 ~ 30 ft/sec.

    Swing point - your shoulder.
     
    Last edited by a moderator: May 15, 2003
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