Question: Point A moves uniformly with velocity v so that the vector v is continually aimed at point B which in its turn moves rectilinearly and

Point A moves uniformly with velocity v so that the vector v is continually “aimed” at point B which in its turn moves rectilinearly and uniformly with velocity u < v. At the initial moment of time v ┴ u and the points are separated by a distance l. How soon will the points converge?

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