Answer
The vertical asymptote happens when the denominator is zero: $v^2=2gR,v=\sqrt {2gR}$
Physically, the vertical asymptote means that the maximum velocity can be achieved by the rocket is $v=\sqrt {2gR}$.
Work Step by Step
see above.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.