# infinite chase

Point A moves uniformly with velocity v so that the vector $$\vec{v}$$ is continually ”aimed” at point B which in its turn moves rectilinearly and uniformly with velocity u . At the initial moment of time $$\vec{v} \perp \vec{u}$$ and the points are separated by a distance l. if v=u then find the distance between them after a very long time

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