\vector{u}

A = (1.4000000000000001, 1.96)
B = (6.140000000000001, 3.98)
u = Vector(A, B)
M = (3.44, -0.28)
a = Line(M, u)
c = Circle(M, Segment[A, B])
M' = Intersect(c, a, 2.0)
v = Vector(M, M')