Brachistochrone curve











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Determine the necessary conditions of optimum to bring the boat from point 1 $(0,0)$ to point 2 $(x,y)$ for a minimum time, $y$ isn't specified.
Equation for fluid:
$$ s(x)=-frac{2}{625} x^2 + frac{8}{25}x $$



Plot[-fluid, {x, -100, 150},
AspectRatio -> Automatic, {PlotRange -> All}]
FindRoot[fluid, {x, 99}]


Doing this in Math I got that width of a fluid is $100$ so I know the coordinate $x$ of 2nd point.
The boat is traveling with $v=mathrm{const}$ and $beta$ is the angle between $v$ and positive $x$ axis.
Can you help me to solve this?
https://imgur.com/S2klpTS










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    up vote
    -2
    down vote

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    Determine the necessary conditions of optimum to bring the boat from point 1 $(0,0)$ to point 2 $(x,y)$ for a minimum time, $y$ isn't specified.
    Equation for fluid:
    $$ s(x)=-frac{2}{625} x^2 + frac{8}{25}x $$



    Plot[-fluid, {x, -100, 150},
    AspectRatio -> Automatic, {PlotRange -> All}]
    FindRoot[fluid, {x, 99}]


    Doing this in Math I got that width of a fluid is $100$ so I know the coordinate $x$ of 2nd point.
    The boat is traveling with $v=mathrm{const}$ and $beta$ is the angle between $v$ and positive $x$ axis.
    Can you help me to solve this?
    https://imgur.com/S2klpTS










    share|cite|improve this question









    New contributor




    Aleksić Željko is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      up vote
      -2
      down vote

      favorite









      up vote
      -2
      down vote

      favorite











      Determine the necessary conditions of optimum to bring the boat from point 1 $(0,0)$ to point 2 $(x,y)$ for a minimum time, $y$ isn't specified.
      Equation for fluid:
      $$ s(x)=-frac{2}{625} x^2 + frac{8}{25}x $$



      Plot[-fluid, {x, -100, 150},
      AspectRatio -> Automatic, {PlotRange -> All}]
      FindRoot[fluid, {x, 99}]


      Doing this in Math I got that width of a fluid is $100$ so I know the coordinate $x$ of 2nd point.
      The boat is traveling with $v=mathrm{const}$ and $beta$ is the angle between $v$ and positive $x$ axis.
      Can you help me to solve this?
      https://imgur.com/S2klpTS










      share|cite|improve this question









      New contributor




      Aleksić Željko is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      Determine the necessary conditions of optimum to bring the boat from point 1 $(0,0)$ to point 2 $(x,y)$ for a minimum time, $y$ isn't specified.
      Equation for fluid:
      $$ s(x)=-frac{2}{625} x^2 + frac{8}{25}x $$



      Plot[-fluid, {x, -100, 150},
      AspectRatio -> Automatic, {PlotRange -> All}]
      FindRoot[fluid, {x, 99}]


      Doing this in Math I got that width of a fluid is $100$ so I know the coordinate $x$ of 2nd point.
      The boat is traveling with $v=mathrm{const}$ and $beta$ is the angle between $v$ and positive $x$ axis.
      Can you help me to solve this?
      https://imgur.com/S2klpTS







      dynamical-systems kinematics






      share|cite|improve this question









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      Aleksić Željko is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|cite|improve this question









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      Check out our Code of Conduct.









      share|cite|improve this question




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      edited 2 days ago









      rafa11111

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      asked 2 days ago









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