It was Aubrey's birthday the other week, and to celebrate we went to Senor Frogs and then the ying yang concert. the waiters come around with whistles and this blue concoction and pour it into people's mouths. when the lady was pouring this concoction into aubrey's mouth (or rather teeth) it's pathway was a parabolic arch. this parabola reminded me of the good old chapter with projectiles. this stream of liquid perfectly represents the pathway of a projectile in flight. gravity pulled the concoction down into a little stream right into her mouth.little drips of the concoction were dribbling down her chin and they gained momentum as they travelled down her neck. the change in momentum was caused by the increase of velocity, which was caused by the steepness of her neck. it was a fun dinnnah