I was thinking about this and couldn't really figure it out. You are standing on a cliff and you have two identical balls. In this case, air resistance is to be ignored. The only thing different is that you throw the ball horizontally at different speeds. Lets say you threw ball one at a speed of 5m/s and the other ball at 10m/s Will the balls land at the same time? Will the balls have the same speed when they land? My thinking: Since air resistance is ignored, I know that the horizontal component will be constant throughout. However, I wasn't really sure how no air resistance will affect the behavior of the ball. Could someone please answer the two question above? Thank you very much.