[SOLVED] Independence of Motion I have a problem with a diagram that goes along with independence of motion. When air resistance is negligible, objects are supposed to fall at the same rate. In the diagram (a flash photograph), it shows 2 balls falling, one straight down, and the other horizontally. So, in my interpretation, they should fall at the same time still. But in the diagram, the horizontal one has 2 more flash's of itself, indicating it took longer to fall. I was able to find another diagram in the textbook with the same problem. So I was just wondering why it shows that.