Just a couple of questions I'm banging my head on. Any help would be great!! 1. Does your accelration have to be negative when you are slowing down? If I started in a negative direction back towards my initial frame of reference, accleration would be positive? But isn't that still speeding up? 2. It is a velocity time graph. I'll explain the best I can. It wants to know which is accelrating faster. It is showing 2 graphs. Graph A is a positive velocity with a positive accleration and it has a small slope so all of this is slowly happening. Graph B is positive velocity with a negative accelration and the slope is larger so it is quickly happening. So when they ask this does it matter if its acclerating or deaccelerating?