X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f996b,53f9f7cceb4d817f X-Google-Attributes: gidf996b,public X-Google-ArrivalTime: 2002-03-30 02:34:22 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news.uchicago.edu!newsswitch.lcs.mit.edu!newsfeed.cwix.com!newsfeed.icl.net!isdnet!195.25.12.36.MISMATCH!oleane.net!oleane!bnewspeer00.bru.ops.eu.uu.net!lnewspeer01.lnd.ops.eu.uu.net!lnewspost00.lnd.ops.eu.uu.net!emea.uu.net!not-for-mail From: "franz heymann" Newsgroups: alt.ascii-art References: Subject: Re: A question for those interested in physics... Date: Sat, 30 Mar 2002 10:25:43 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Lines: 50 Message-ID: <3ca594b6$0$8508$cc9e4d1f@news.dial.pipex.com> NNTP-Posting-Host: userhk75.uk.uudial.com X-Trace: 1017484471 news.dial.pipex.com 8508 62.188.31.33 X-Complaints-To: abuse@uk.uu.net Xref: archiver1.google.com alt.ascii-art:16417 Edwin wrote in message news:a7q9p0$n6or0$2@ID-56786.news.dfncis.de... > C Lund wrote in > news:christopher.lund-FEA33D.11270526032002@news01.chello.no: > > > In article , > > "Robert Bowmaker" wrote: > > > >> Firing bullets straight up is a common occurence in many situations > >> (i.e. warning shots, shooting at the sky during a funeral for certain > >> people etc.) > >> > >> The question is: What actually happens to the bullet? Does it go into > >> space? > > > > Unlikely. I don't think the bullet goes fast enough. > > > >> Does it fall back down? > > > > Yes. > > > >> Does it burn up? > > > > Unfortunatly, no. > > > > Not only does the bullet fall back down, but when it hits the ground, > > it's travelling at roughly the same speed as when it left the gun > > (minus a little for air resistance). I'm pretty sure people have been > > killed this way. > > No, the force of gravity acting on a few ounces of lead can't accelerate it > to the same velocity it had by being fired out of the gun. If it could, > you'd never be able to fire the bullet straight up. The forces would be > equal. Edwin needs to look again at the problem, and bring to bear some thoughts about conservation of energy. Franz Heymann