In a pursuit problem, the target moves along a given curve,












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In a pursuit problem, the target moves along a given curve, another object, the pursuer pursues the first, that is, at all times the pursuer moves in the direction of the target.
enter image description here



Suppose that the target is a ship that moves along a straight line and that the pursuer is a destroyer that moves so that the distance between it and the ship is constant, but it is $a> 0 $



a) If $(x, 0) $ represents the position of the ship at a given moment and $y (x) $ is the ordinate of the position of the destroyer at that same moment, deduce that $y$ satisfies the following initial value problem: $$left {begin{array}{c} y'(x) = - dfrac{y (x)}{sqrt{a^{2} -y^{ 2}(x)}} \ y(0) = a end{array}right. $$



b) Show that the previous problem has a unique solution,



I have problems with the first literal because, I do not know what it is that I am asking ... and for the second one, how do I demonstrate the uniqueness of the solution?










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    0












    $begingroup$


    In a pursuit problem, the target moves along a given curve, another object, the pursuer pursues the first, that is, at all times the pursuer moves in the direction of the target.
    enter image description here



    Suppose that the target is a ship that moves along a straight line and that the pursuer is a destroyer that moves so that the distance between it and the ship is constant, but it is $a> 0 $



    a) If $(x, 0) $ represents the position of the ship at a given moment and $y (x) $ is the ordinate of the position of the destroyer at that same moment, deduce that $y$ satisfies the following initial value problem: $$left {begin{array}{c} y'(x) = - dfrac{y (x)}{sqrt{a^{2} -y^{ 2}(x)}} \ y(0) = a end{array}right. $$



    b) Show that the previous problem has a unique solution,



    I have problems with the first literal because, I do not know what it is that I am asking ... and for the second one, how do I demonstrate the uniqueness of the solution?










    share|cite|improve this question









    $endgroup$















      0












      0








      0





      $begingroup$


      In a pursuit problem, the target moves along a given curve, another object, the pursuer pursues the first, that is, at all times the pursuer moves in the direction of the target.
      enter image description here



      Suppose that the target is a ship that moves along a straight line and that the pursuer is a destroyer that moves so that the distance between it and the ship is constant, but it is $a> 0 $



      a) If $(x, 0) $ represents the position of the ship at a given moment and $y (x) $ is the ordinate of the position of the destroyer at that same moment, deduce that $y$ satisfies the following initial value problem: $$left {begin{array}{c} y'(x) = - dfrac{y (x)}{sqrt{a^{2} -y^{ 2}(x)}} \ y(0) = a end{array}right. $$



      b) Show that the previous problem has a unique solution,



      I have problems with the first literal because, I do not know what it is that I am asking ... and for the second one, how do I demonstrate the uniqueness of the solution?










      share|cite|improve this question









      $endgroup$




      In a pursuit problem, the target moves along a given curve, another object, the pursuer pursues the first, that is, at all times the pursuer moves in the direction of the target.
      enter image description here



      Suppose that the target is a ship that moves along a straight line and that the pursuer is a destroyer that moves so that the distance between it and the ship is constant, but it is $a> 0 $



      a) If $(x, 0) $ represents the position of the ship at a given moment and $y (x) $ is the ordinate of the position of the destroyer at that same moment, deduce that $y$ satisfies the following initial value problem: $$left {begin{array}{c} y'(x) = - dfrac{y (x)}{sqrt{a^{2} -y^{ 2}(x)}} \ y(0) = a end{array}right. $$



      b) Show that the previous problem has a unique solution,



      I have problems with the first literal because, I do not know what it is that I am asking ... and for the second one, how do I demonstrate the uniqueness of the solution?







      real-analysis calculus ordinary-differential-equations






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      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Dec 5 '18 at 21:36









      Santiago SeekerSantiago Seeker

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