Assume that a particle is at the location l 2 3 and is

Question

Assume that a particle is at the location L = (2, 3) and is moving with the velocity V = (1, -2). Assume that there is a mirror that connects the point P₁ = (4, 0) to the point P₁ = (0, 3). How fast the particle and its image on the mirror are getting closer to each other? (Find the relative speed between the particle and its image).