Recent content by phys123

I do have Object 2's position, forgot to mention that. And what you are saying is exactly what I need to do. Can you go into detail on how I would calculate this? My physics isn't very strong

There are 2 objects. Object 1 is stationary and Object 2 is in motion. Object 1's position in the 3D world is (x=0,y=0,z=0). I have Object 2's velocity (also in x,y,z directions). I need to calculate the speed at which Object 2 is moving towards (or away from) Object 1. Keep in mind that this...