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22225: Re: [MUD-Dev] Source data on Crossbow

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From: "Bobby Martin" <bobbymartin@hotmail.com>
Newsgroups: nu.kanga.list.mud-dev
Date: Wed, 06 Feb 2002 21:18:12
Organization: Kanga.Nu
From: Christopher Kohnert <chris@achaea.com>
> On Mon, 2002-02-04 at 21:25, Bobby Martin wrote:

>> Conservation of energy is not very important in determining how
>> much the target will move; conservation of momentum, on what part
>> of the target the collision takes place, and biological factors
>> (muscles going limp, etc.) are much more important.

> This assumes rigid body dynamics, which if dealing with a live
> human body is likely not very applicable.

No, conservation of momentum is an absolute, whether the bodies are
rocks, bags of water, or neutron stars.  Please provide an example
of some situation in which a non-rigid body doesn't obey
conservation of momentum in the obvious way (i.e. the vector sum of
the momentum of the individual pieces is not a constant).

<EdNote: This confusion may be due to over-zealous quote trimming on
my part>

Regards,
Bobby Martin
Cosm Development Team

secure email: bobbymartin@hushmail.com
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