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  • Kinetic Energy Erratum - (alleged)

    From Dave@21:1/5 to All on Sun Jan 8 14:21:42 2023
    XPost: alt.sci.physics, uk.politics.misc, uk.politics.misc

    This post is all about an alleged erratum.

    F=max = m (v2^2 - v1^2)/2s - this is absolutely OK for me.

    Then

    Fs= 1/2 (mv2^2) - 1/2 (mv1^2) - this is OK

    It is the interpretation of Fs which has the error (alleged).

    "In Eq [above] the product Fs is the work done by the net force F and
    thus equal to the total work Wtot done by all the forces acting on the particle. The quantity 0.5mv^2 is called the kinetic energy K of the
    particle."

    Force is not energy.

    Mixing up energy and force used to get you a wrap over the knuckles in
    school.

    This error (alleged) is holding back all technical development using
    physics which has a moving part.

    Over the last few weeks, I have been posting about gravity as well,
    which is related, and any correction here opens up more opportunities -
    please feel free to read.

    In general, are publishers on the side of evidence, or the status quo? I suggest you read your own textbook and look for the similar.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Dave@21:1/5 to Dave on Sun Jan 8 14:40:59 2023
    XPost: alt.sci.physics, uk.politics.misc, uk.politics.misc

    On 23 42, Dave wrote:
    This post is all about an alleged erratum.

    F=max = m (v2^2 - v1^2)/2s - this is absolutely OK for me.

    Then

    Fs= 1/2 (mv2^2) - 1/2 (mv1^2)  - this is OK

    It is the interpretation of Fs which has the error (alleged).

    "In Eq [above] the product Fs is the work done by the net force F and
    thus equal to the total work  Wtot done by all the forces acting on the particle. The quantity 0.5mv^2 is called the kinetic energy K of the particle."

    Force is not energy.

    Mixing up energy and force used to get you a wrap over the knuckles in school.

    This error (alleged) is holding back all technical development using
    physics which has a moving part.

    Over the last few weeks, I have been posting about gravity as well,
    which is related, and any correction here opens up more opportunities - please feel free to read.

    In general, are publishers on the side of evidence, or the status quo? I suggest you read your own textbook and look for the similar.
    I can add that no books with technical content should ever be published,
    but written longhand. (A slight difference in the production process,
    if unfamiliar.) A good example of a longhand book is K&R The C
    Programming language - short and sweet.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Dave@21:1/5 to Dave on Sun Jan 8 14:54:15 2023
    XPost: alt.sci.physics, uk.politics.misc, uk.politics.misc

    On 23 59, Dave wrote:
    On 23 42, Dave wrote:
    This post is all about an alleged erratum.

    F=max = m (v2^2 - v1^2)/2s - this is absolutely OK for me.

    Then

    Fs= 1/2 (mv2^2) - 1/2 (mv1^2)  - this is OK

    It is the interpretation of Fs which has the error (alleged).

    "In Eq [above] the product Fs is the work done by the net force F and
    thus equal to the total work  Wtot done by all the forces acting on
    the particle. The quantity 0.5mv^2 is called the kinetic energy K of
    the particle."

    Force is not energy.

    Mixing up energy and force used to get you a wrap over the knuckles in
    school.

    This error (alleged) is holding back all technical development using
    physics which has a moving part.

    Over the last few weeks, I have been posting about gravity as well,
    which is related, and any correction here opens up more opportunities
    - please feel free to read.

    In general, are publishers on the side of evidence, or the status quo?
    I suggest you read your own textbook and look for the similar.
    I can add that no books with technical content should ever be published,
    but written longhand.  (A slight difference in the production process,
    if unfamiliar.) A good example of a longhand book is K&R The C
    Programming language - short and sweet.
    Basically the more people who put on the heat, the sooner this will be
    fixed, and things unblocked generally.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)