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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!vax135!cornell!uw-beaver!tektronix!teklds!dadla!jamesp
From: jamesp@dadla.UUCP (Jim Perkins)
Newsgroups: net.space
Subject: Re: Antisatellite weapon effectiveness
Message-ID: <379@dadla.UUCP>
Date: Tue, 27-Aug-85 18:41:34 EDT
Article-I.D.: dadla.379
Posted: Tue Aug 27 18:41:34 1985
Date-Received: Fri, 30-Aug-85 09:57:55 EDT
References: <1273@poseidon.UUCP> <378@dadla.UUCP>
Reply-To: jamesp@dadla.UUCP (Jim Perkins)
Organization: Jupiter Phase, Beaverton, OR
Lines: 30
Summary: 

>An object moving at 500 mi/min. = 50 mi/sec. = 80 km/sec, weighing, say, 20
>kg has a kinetic energy of .5mv*v = (.5)(20 kg)(80k m/s)(80k m/s) = 1.6e+10 J.
>This is no small crackers,...
>
>James T. Perkins -- dadla!jamesp, orstcs!jamesp
>

Oops! I made an arithmetic boo-boo:

Let me restate...

An object moving at 500 mi/min. = ~ 10 mi/sec. = 16 km/sec, weighing, say, 20
kg has a kinetic energy of .5mvv = (.5)(20 kg)(16k m/s)(16k m/s) = 2.6e+9 J.
This is *STILL* no small crackers,... ;-)
-- 

James T. Perkins -- dadla!jamesp, orstcs!jamesp



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