Homework Statement
Solve the DE subject to y(1)=0. Forconvenience let k=v_r/v_s.
First let me apologize for the way it is written but I don't know how to use software like other on other posts I see.
Homework Equations
(dy/dx)= (v_s*y - v_r*sqrt(x^2+y^2)) / (v_s*x)
this may be...