v_A

v_P

P = (10, 1)
O = (0, 0)
a = Line(O, P)
w = (1.7320508075688774, -0.9999999999999999)
c = Circle(O, 6)
A = Point(c)
B = Intersect(c, yAxis, 2)
α = Angle(A, O, B)
u = Vector(O, A)
v: u + w