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

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Am 09.01.2023 um 15:13 schrieb Joe:
...

> Momentum is useful in particular situations, for example solving
> problems involving snooker balls. Anything involving resonance is best
> understood in terms of energy, as resonance is the repeated conversion
> of one type of energy to another, and back again.

My problem with momentum and energy is, that momentum is known to be a 
conserved quantity and energy assumed to be.

But momentum is m*v, while kinetic energy is 1/2 *m *v².

How could both quantities possibly be both conserved for the same 
object, with same mass m and same velocity v, if one curve of that 
quantity over v is linear with v and one quadratic ????

If v gets smaller a little, than both curves cannot possibly coincide 
with their respective conservation curve, hence one quantity is not 
conserved, if v is altered. But we can easily alter v, because v is 
frame dependent. And choosing a different coordinate system should not 
alter the state of an object, hence neither energy nor momentum.

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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