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Bullet into wood

  1. Apr 11, 2014 #1
    Hello,

    This is not really homework, but is in the context of my course.

    We always say that a bullet embeded into a wood does not conserve energy. We say heat is created. But, I was wondering: is the deformation of the wood considered heat released or is it some other kind of energy?

    Is there any other kind of energy loss? What type?
     
  2. jcsd
  3. Apr 11, 2014 #2
    The deformation of the wood would be a combination of elastic and inelastic energy. The elastic component would be conserved but the inelastic portion would not.

    Other energy losses aside from heat/friction would be sound and possibly light from sparks.
     
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