Originally Posted by slide
You are dead bang wrong, here fellow. You are on a fixed roadway so the angles NEVER change. What varies is apparent SPEED.
If the apparent speed of the other is faster than you, then you will pass behind him. Slower and you will pass in front of him. If there is NO or little difference in apparent speed, you will CRASH.
I'm amazed you are still alive old timer but also wonder if others who you've advised are doing as well.
Dear doG, don't teach children geometry.