In the shooting of the movie, "A Beautiful Mind", Ravi, the actor, is running towards a vertical mirror with a speed of 10 m/sec on a line which is perpendicular to the plane of the mirror. The mirror is moving towards Ravi with a speed of 6 m/sec along the same line. Find the speed of Ravi’s image with respect to Ravi (the image of Ravi forms on the other side of the mirror such that the distance between the image of Ravi and the mirror is equal to the distance between Ravi and the mirror).