How do the physics of this shot work?
As Bob shoots it, the outside english throws the object ball into line. It's otherwise a natural cut. If you watch the ball drop it still throws wide a couple degrees.
The hundred mile an hour version uses high speed to minimize the throw. If you hit it just right, the cue ball will graze the ball high, further minimizing the throw. Less leverage is my guess. There's also a chance the CB makes contact on the far side making contact at 90+ degrees.
