Physics

One day I was driving in my car on the H-1 when I thought to myself, hey, this is physics!!! All the cars around me were in motion, going at around the same velocity and acceleration as I was. A little ahead of me in the left lane is a car that is going at a faster velocity. I noticed this because just a few seconds before, that car was behind me. At this point in time, my speed was constant, which means that my acceleration was at zero. About two minutes and 48 seconds before, the freeway turned into an rather large incline, forcing me to accelerate to keep my constant speed. While going up the hill, my speed was decreasing due to the negative acceleration. Also about 7 minutes and 23 seconds later, a car forced its way between me and the car in front, forcing me to step on the breaks. This negative acceleration caused my velocity to fall and infuriate me.