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Article #6554Re: Acceleration
From: _Floor_
Date: Tue, 29 Dec 1992 16:22
Date: Tue, 29 Dec 1992 16:22
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2428 bytes
In article <C00wHv.HK7.1@cs.cmu.edu> roberts@cmr.ncsl.nist.gov (John Roberts) writes: ] -Small force? I think they said the probe would feel an acceleration of 350 g's. ] ------------ ] -It's receiving a force 350 times that of Earth's gravity at the surface of ] -the Earth. That's quite a bit of force if you ask most people. ] ----- ] ] - Gene Van Buren, Kzoo Crew(Floor), Washington U. in St. Lou - #1 in Volleyball ] ] Acceleration and force are not the same thing. In this case, acceleration ] is force *per unit mass*. If you can keep the mass down on any given ] component, then the force isn't too great, even under high acceleration. ] F=ma, right? So if the mass is the same, then an acceleration 350 times that experienced on earth is due to a force 350 times that on earth, right? Or does the mass somehow change around Jupiter? :-) ] Just design the system so that each component can support at least 350 times ] its own (Earth) weight[1]. Of course you need a safety factor and allowance ] for buffeting, so you might want to design the probe to withstand 500 G or ] more. This is still far below the requirements of the electronics in artillery ] shells. ] ] [1] - Bearing in mind the expected direction of the force, and the influence ] that the components have on one another. ] John Roberts They're doing some pretty impressive stuff with durable electronics these days. _____ "But you can't really call that a dance. It's a walk." - Tony Banks / ___\ ___ __ ___ ___ _____________ gene@cs.wustl.edu | / __ / _ \ | / \ / _ \ | physics | gene@lechter.wustl.edu | \_\ \ | __/ | /\ | | __/ |racquetball| gev1@cec2.wustl.edu \_____/ \___/ |_| |_| \___/ | volleyball| gene@camps.phy.vanderbilt.edu Gene Van Buren, Kzoo Crew(Floor), Washington U. in St. Lou - #1 in Volleyball
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Newsgroups: sci.space Path: arc1-ca.pugleaf.net!sparky!uunet!news.claremont.edu!ucivax!news.service.uci.edu!usc!wupost!eclnews!wucs1!gene From: gene@wucs1.wustl.edu (_Floor_) Subject: Re: Acceleration Message-ID: <1992Dec29.162235.15255@wuecl.wustl.edu> Sender: usenet@wuecl.wustl.edu (News Administrator) Nntp-Posting-Host: wucs1 Organization: The K-Zoo Crew References: <C00wHv.HK7.1@cs.cmu.edu> Distribution: sci Date: Tue, 29 Dec 1992 16:22:35 GMT Lines: 36