At the 2:30 mark of this video of a snooker match, Judd Trump acieves wonderful action on his cue ball following its contact with the red ball. (His shot is also shown in slow motion immediately afterwards.)
Unlike the youthful commentator at 2:50, I’m not asserting that the cue ball “defies the laws of physics”. Obviously not.
What I am wondering about, though, is what mechanism accounts for the cue ball speeding up a moment or two after striking the red. In other words, immediately after hitting the red ball, the cue ball is moving very slowly. Then, a moment later, it’s moving much faster. What mechanism accounts for that acceleration - acceleration that seems to be occurring in the absence of any external force.
(I should say that this phenomenon is not at all rare for the cue ball in snooker. It’s just that this video shows a particularly nice example of it.)