Emphasise a sense of speed
This technique is not only good for adding a sense of movement to static shots, but also for increasing it in images with speedy subjects. To capture the image on the left a fast shutter speed was needed, but this resulted in a scene where everything appeared sharp, nullifying the sense of action. By adding a zoom blur to the image and selectively removing the subjects from it, we’ve increased the impact it has and simultaneously blocked out the distractions in the background.
With zoom blur added the sharp subject in the image has more impact.