A cat sees its image in a plane mirror. The cat is 1 m from the mirror. A) Where is the image? B) The cat lunges at the mirror at 2 m/s. How fast does the cat approach its image?
The Attempt at a Solution
I understand that for a, the image would also be 1 m away from the mirror. I thought this would be the case for 2B too, that the image would move as fast as the object was found its image would actually move 4 m/s. I don't understand why this would be the case...Any input on this would be appreciated.