Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!ut-sally!ut-ngp!melpad!reality1!james From: james@reality1.UUCP (james) Newsgroups: net.puzzle,sci.physics Subject: Re: Funny Orbits Message-ID: <59@reality1.UUCP> Date: Sun, 26-Oct-86 23:27:24 EST Article-I.D.: reality1.59 Posted: Sun Oct 26 23:27:24 1986 Date-Received: Mon, 27-Oct-86 20:08:55 EST References: <352@linus.UUCP> Reply-To: james@reality1.UUCP (james) Distribution: net Organization: Reality Computer Systems, Austin TX Lines: 17 Xref: mnetor net.puzzle:1527 sci.physics:66 In article <352@linus.UUCP> bs@linus.UUCP (Robert D. Silverman) writes: >Assume that an object in a circular orbit suddenly has its mass cut in half. >What happens to the orbit? >By the way, the factor of 2 in the above question is critical. If it is >greater than 2 something else happens and if it is less than 2 something else >happens. Um, intuition makes me say nothing happens. If a shuttle astronaut lets go of the vehicle, he just floats there. It doesn't matter how big the astronaut is. Since the same would be true of a rock, I would expect that if a rock were cut in half in orbit, nothing would happen. Aren't orbits about the earth a function of the velocity of the satellite and not the mass??? -- James R. Van Artsdalen ...!ut-ngp!utastro!osi3b2!james "Live Free or Die"