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- Path: sparky!uunet!gumby!yale!news.wesleyan.edu!news.wesleyan.edu!news
- Newsgroups: sci.physics
- Subject: Inelastic versus Elastic
- Message-ID: <1992Nov22.101430.455@news.wesleyan.edu>
- From: BBLAIS@eagle.wesleyan.edu (BRIAN S. BLAIS)
- Date: 22 Nov 92 10:14:29 EDT
- Distribution: world
- Organization: Wesleyan University
- Nntp-Posting-Host: eagle.wesleyan.edu
- X-News-Reader: VMS NEWS 1.20Lines: 20
- Lines: 20
-
- A friend of mine wrote me:
- --
- Suppose that you have a bullet running into a block. It does so in a perfectly
- inelastic manner. That is, the bullet stays in the block after the collision
- imparting its momentum into the combination of itself and the block. However,
- some of the energy of the motion is lost in the form of heat, so kinetic
- energy is not conserved.
-
- Why? I am looking for an intuitive explanation of the conservation of moment
- that allows one to see clearly and distinctly that, even though some of the
- quantity of motion is converted into heat, the quantity of motion as expressed
- by _mv_ remains the same.
- --
-
- I was trying to think of some reply to this, and thought that people
- one the Net might like thinking about it. I would like to know if anyone has
- any good way of looking at this problem.
-
- Brian Blais
-
-