Fast Shutter Speed
This fast shutter speed picture lets less light in so that the subject is frozen, instead of making any blur. This is the best fast shutter speed picture because it really freezes the ball and the subject mid-air.
Slow Shutter Speed
This slow shutter speed shot, allowed more light in, so the motion in the umbrella causes blur in the picture. This is probably the best motion picture because of the blu of the umbrella with the freezing of the subject.