Answer:
Explanation:
We define our values according to the text,
R= Radius
Velocity
Strenght of the vortex filament
From this and in a vectorial way we express an elemental lenght of this filmaent as . So,
Where imply a vector acting perpendicular to both vectors.
Applying Biot-Savart law, we have,
Substituting the preoviusly equation obtained,
So we can express the velocity induced is,