X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f996b,53f9f7cceb4d817f X-Google-Attributes: gidf996b,public X-Google-ArrivalTime: 2002-03-26 13:06:40 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news.uchicago.edu!not-for-mail X-ORIG-NG: alt.ascii-art,alt.seduction.fast,comp.os.linux.advocacy,comp.text.tex,alt.flame.jesus.christ,comp.sys.mac.advocacy,comp.unix.bsd.openbsd.misc,comp.unix.bsd.freebsd.misc,comp.unix.bsd.misc,sci.physics,alt.sci.physics Newsgroups: alt.ascii-art Subject: Re: A question for those interested in physics... From: Anil Reply-To: aniltr@SELDOM_CHECKEDhotmail.com Organization: None References: X-Newsreader: trn 4.0-test70 (17 January 1999) Originator: jor2@midway.uchicago.edu (denise marie jorgens) Lines: 15 Message-ID: NNTP-Posting-Host: 128.135.12.7 X-Trace: news.uchicago.edu 1017176798 128.135.12.7 (Tue, 26 Mar 2002 15:06:38 CST) NNTP-Posting-Date: Tue, 26 Mar 2002 15:06:38 CST X-SessionID: yp5o8-24137-s4-8571@news.uchicago.edu X-Hash-Info: post-filter,v:1.4 X-Hash: 81b98501 1bc3ce91 110ff3ff cf4665a0 a07bba35 Date: Tue, 26 Mar 2002 21:06:38 GMT Xref: archiver1.google.com alt.ascii-art:16286 Edwin wrote: >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. Gravity accelerates everything equally, lead or iron, a few ounces or many tons. Surprisingly perhaps (depends on what you know), without air resistence, anything thrown vertically upwards will come down and hit the ground with the same speed. The faster the initial speed. The higher it goes before starting downwards and therefore the longer the gravity has to accelerate it: it all works out. In practice, air resistance will slow it down. -Anil