Déplacer les points rouges.
t représente le temps

a0_P = (0.38, 4.58)
t = Point(xAxis)
P0 = (0.32, 9.98)
a0 = Vector(P0, a0_P)
V0_P = (6.04, 11.72)
V0 = Vector(P0, V0_P)
P_t: (x(P0) + x(V0) * x(t) / 10 + 0.5 * x(a0) * (x(t) / 10)^(2), y(P0) + y(V0) * x(t) / 10 + 0.5 * y(a0) * (x(t) / 10)^(2))
V_P: (x(P_t) + x(V0) + x(a0) * x(t) / 10, y(P_t) + y(V0) + y(a0) * x(t) / 10)
f = Line(V_P, P_t)
a_p = Translate(P_t, a0)
a = Vector(P_t, a_p)
V_t = Vector(P_t, V_P)
b = OrthogonalLine(a_p, V_t)
d = OrthogonalLine(P_t, V_t)
e = OrthogonalLine(a_p, d)
a_{normal P} = Intersect(d, e)
a_{normale} = Vector(P_t, a_{normal P})
c = OrthogonalLine(a_p, f)
a_{tang P} = Intersect(f, c)
a_{tang} = Vector(P_t, a_{tang P})