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Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up.

From	Thomas Heger <ttt_heg@web.de>
Newsgroups	sci.physics, alt.sci.physics, alt.conspiracy, uk.politics.misc
Subject	Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up.
Date	2023-01-09 09:07 +0100
Message-ID	<k220anFsac9U1@mid.individual.net> (permalink)
References	<tpe2q8$3qef8$1@dont-email.me>

Cross-posted to 4 groups.

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Am 08.01.2023 um 10:36 schrieb Dave:
> Is it v or v^2?
>
> Is this formula E=0.5mv^2 correct, or is it more like E= mv?


That should depend on the used units for E, m and v.

As unit systems have different degrees of internal consistency, you 
should certainly be able to find an example for both factors.


I usually use SI units only and would get 0.5 as factor, but have not 
verified the exponent 2 myself.

In general I would prefer the quantity momentum over energy, because v 
is frame dependent, hence also kinetic energy.

Then I would like to compare conservation of momentum and conservation 
of energy, but suggest choosing conservation of momentum over 
conservation of energy.

TH

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Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Dave <dwickford@yahoo.com> - 2023-01-08 09:36 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Dave <dwickford@yahoo.com> - 2023-01-08 10:13 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-08 08:16 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-09 09:07 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Joe <joe@jretrading.com> - 2023-01-09 14:13 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-11 10:42 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-11 11:22 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-12 08:31 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Evangelista Barzetti <magm@hyojmkib.vi> - 2023-01-12 16:45 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Otto Fiscella <tfit@tiselelc.it> - 2023-01-12 16:51 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-13 08:23 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Tom Roberts <tjoberts137@sbcglobal.net> - 2023-01-13 20:24 -0600
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-14 10:00 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Faustino Biondo <uinn@bfotboia.nt> - 2023-01-25 19:19 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-26 09:53 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Baldomero De filippis <ppbo@ibsldimp.sn> - 2023-01-26 21:36 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Baldomero De filippis <ppbo@ibsldimp.sn> - 2023-01-26 22:20 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-27 08:08 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Volney <volney@invalid.invalid> - 2023-01-27 20:23 -0500
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Baldomero De filippis <ppbo@ibsldimp.sn> - 2023-01-26 22:34 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. De filippis <ppbo@ibsldimp.snBaldomero> - 2023-01-27 21:30 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Y A <angel0000000010000000000000@gmail.com> - 2023-01-09 06:15 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Sylvia Else <sylvia@email.invalid> - 2023-01-28 09:01 +1100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. James McGinn <jimmcginn9@gmail.com> - 2023-01-29 10:50 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-29 11:05 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Sylvia Else <sylvia@email.invalid> - 2023-01-30 22:57 +1100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Arindam Banerjee <banerjeeadda1234@gmail.com> - 2023-01-27 23:25 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-28 06:37 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Arindam Banerjee <banerjeeadda1234@gmail.com> - 2023-01-29 07:05 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-29 07:50 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Arindam Banerjee <banerjeeadda1234@gmail.com> - 2023-01-29 23:10 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-30 05:57 -0800

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