Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!lll-lcc!ames!ucbcad!ucbvax!jade!jkh From: jkh@jade.BERKELEY.EDU (Jordan K. Hubbard) Newsgroups: mod.rec.guns Subject: Rebuttal to Newton's law vis-a-vis bullet trajectory Message-ID: <2190@jade.BERKELEY.EDU> Date: Wed, 14-Jan-87 01:39:18 EST Article-I.D.: jade.2190 Posted: Wed Jan 14 01:39:18 1987 Date-Received: Wed, 14-Jan-87 19:51:29 EST Organization: U.C. Berkeley Lines: 26 Approved: jkh@ucbjade Author: gus Baird Article: 1:19 [See what happens when you don't include subject lines in your submissions? -jh ] > Article 318 of mod.rec.guns: > Author: decvax!decwrl!prls!philabs!pwa-b!anneser@ucbvax.berkeley.edu (Dean Anneser) > Article: 1:4 > > References: <1957@jade.BERKELEY.EDU> + I believe it was Newton who proved that two metal balls of differing weights, + dropped from the same height at the same time shall reach the ground at the + same time (discounting the negligible effects of friction through the air). + Similarly, if one ball was dropped, and at the same instant, another ball + was thrust horizontally from the same height, they would both reach the + ground at the same time (assuming a relatively flat earth). + + Therefore, if you bore sighted a target, that would be suspended with some + mechanism that would release the target the instant you pulled the trigger, + you would always hit the target (assuming negligible effects of air friction + as the target dropped). I'm not so sure... I recall seeing that there are significant lift effects on fast-spinning rifle bullets. The net result may be surprisingly contra-intuitive. You probably wouldn't notice it in pistolcraft. I'll try to find my source for you, but I wanted to put out this caution ASAP.