An object is placed on the principal axis of a concave spherical mirror with focal length \(f\) at an initial object distance \(d_o > 2f\). The object is then moved toward the mirror at a constant linear speed \(v_0\) until it reaches the focal point \(f\). Which of the following correctly describes the direction of motion of the real image and how its speed changes as the object moves from its initial position toward the focal point?