Translations:Raypath for velocity linear with depth/20/es

${\begin{aligned}x_{E}{\rm {=}}JE{\rm {=}}JG{\rm {+}}GE{\rm {=}}OF{\rm {+}}GE{\rm {=}}OF{\rm {+}}AG{\rm {\ tan\ }}\alpha \\{\rm {=}}{\frac {x}{\rm {2}}}{\rm {+}}\left({\frac {y}{\rm {2}}}{\rm {+}}{\frac {v_{0}}{a}}\right){\frac {y}{x}}{\rm {=}}{\frac {x^{\rm {2}}{\rm {+}}y^{\rm {2}}}{{\rm {2}}x}}{\rm {+}}{\frac {v_{0}}{a}}{\frac {y}{x}}.\end{aligned}}$

(49)