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- Path: sparky!uunet!ogicse!das-news.harvard.edu!husc-news.harvard.edu!husc.harvard.edu!mcirvin
- From: mcirvin@husc8.harvard.edu (Matt McIrvin)
- Newsgroups: sci.physics
- Subject: Re: satellite orbits
- Message-ID: <mcirvin.727739591@husc.harvard.edu>
- Date: 22 Jan 93 21:53:11 GMT
- Article-I.D.: husc.mcirvin.727739591
- References: <376oXB3w165w@netlink.cts.com> <1993Jan21.213632.3246@newshost.lanl.gov> <1993Jan22.015334.9290@leland.Stanford.EDU>
- Lines: 14
- Nntp-Posting-Host: husc8.harvard.edu
-
- ledwards@leland.Stanford.EDU (Laurence James Edwards) writes:
-
- >In article <1993Jan21.213632.3246@newshost.lanl.gov>, u108502@beta.lanl.gov (Andrew Poutiatine) writes:
- >|> The gravitational force is toward the Earth, and is hence a centripital force.
- >|> In this simple example there is no centrifugal force.
- > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- >If the earth exerts a centripetal force on the satellite I would think the
- >satellite exerts a centrifugal force on the earth, as you mention subsequently
- >with the example of the ball and string.
-
- The satellite does exert an upward force on the earth. But there's
- no centrifugal force on the satellite.
- --
- Matt McIrvin
-