Hi, just curious: I was able to simulate rotation motion in Alice software , as a combination of two motions: 1)Moving forward 2)Turning left (I can choose the rate at which each of these happens , in terms of meters and revolutions respectively.) Done simultaneously, at just the right rate of each. I guess this shows that circular motion can be described by a combination of moving left and moving forward, where the rates of the two motions are in the right range each. But I am trying to make this more precise :Is there an actual formula for circular motion/velocity relating the two types of motions? I mean, if I were to move forward at, say, 2meters/sec, how fast should I be moving left for the resulting motion to describe a rotation? I am too rusty on the formulas of angular velocity/acceleration, etc. but I don't have a clue otherwise. Any ideas? Thanks.