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Path: utzoo!linus!philabs!cmcl2!seismo!lll-crg!dual!decwrl!dec-rhea!dec-raja!merrill
From: merrill@raja.DEC
Newsgroups: net.physics
Subject: re: Real-Life Problem?
Message-ID: <1444@decwrl.UUCP>
Date: Fri, 15-Nov-85 08:12:13 EST
Article-I.D.: decwrl.1444
Posted: Fri Nov 15 08:12:13 1985
Date-Received: Sun, 17-Nov-85 06:36:28 EST
Sender: daemon@decwrl.UUCP
Organization: Digital Equipment Corporation
Lines: 13


'Pears to me that unless you have a perfect release of the egg-brick combo
it could rotate randomly, so you will have to use aerodynamics to make the
brick land on the bottom: give it a "tail" of feathers/paper about three
times as long as the rest of the package.  To get the length "right" would
require controlling the magnitude of the oscillation upon impact: the package
will be like \ then | then / then | then \ and so on.  You'll need the
velocity at impact, the moment of inertia of the whole thing, the aerodynamic
force on the "tail" (proportional to the velocity x surface area).  You can
then plug those parameters into the equation for a pendulum [which itself
can be derived from a dimemsional analysis of the parameters].

	Rick Merrill