Quick question about translating what's on the Velocity vs Time graph into what is actually happening to the object. A cart is traveling on a straight horizontal track. So I determined that east is positive direction. So, if the velocity vs time graph is showing a negative slope of -0.2 does that mean that the cart is going backwards due west? (Vise versa, If cart has positive slope it is going forward?) If not what is the cart actually doing?