How fast does the boy move away from his image in a flat mirror, if he moves away from the mirror at a speed of 0.60 m / s.

Answer: A flat mirror doubles the distance between the object and its reflection. As far as the object is away from the mirror, so is the reflection away from it from its “looking-glass” side. If the object begins to move away from the mirror, then its reflection will also move away from it in the same way. Consequently, they will diverge from each other at twice the speed. Therefore, the boy in this example will move away from his reflection at a speed of – 0.6 m / s * 2 = 1.2 m / s.