Question 985269
Too imprecise.  Are the "2" supposed to be factors, subscripts, or exponents?


X/y = sqrt[v2/U2]


Expecting exponents for those, then use plain text this way:
X/y=sqrt(v^2/U^2)


then the rendering tags will give the correct appearance:
{{{X/y=sqrt(v^2/U^2)}}}


Solve what you want using inverse operations.


(Solved in your second question post for the identical problem)