You were already offered a bet in post #57, and you didn't take the bet because you can't actually do what you are claiming. You can't do the shot for pride, you can't do the shot for bragging rights, you can't do the shot to save face, you can't do the shot to prove all the doubters wrong, you can't do the shot to win a very large bet that was offered to you, you can't do the shot for green eggs and ham, you can't do the shot period (nor can anyone else, it just can't be done).
In your video, there are several potential reasons the cue ball is able to get to the bottom rail, and more than one of them at a time can be at work.
First, in a cue ball and object ball collision, the amount of time that they are in contact with each other is very, very small, just over a thousandth of a second if I recall correctly. In a near perpendicular collision between cue ball and cushion like in your video though, the amount of time the cue ball is in contact with the cushion is much, much longer than that, with a lot of time spent compressing into the rail, and then a lot of time spent with the rail pushing back against the cue ball to rebound it but where they are still in contact with each other for a while during that time.
What is happening in yours and similar shots is that the cue ball is hitting the rail first and then spinning over into the object ball, sending the object ball on its way, but all
while the cue ball is still compressing into the rail. Now that the object ball is out of the way, as the cue ball continues compressing into the rail, and then as the cue ball is rebounding back out but still in contact with the cushion, the spin on the cue ball has been
working that whole time changing the rebound angle. That is what allows it to head towards that opposite corner pocket or even the end rail because the cue ball spin was still working on the rail after the object ball was gone.
You also have the object ball like a half diamond away from the pocket in this case, which creates lots of room for slop here. You might have even hit the front side of the object ball, a less than 90° angle hit, and "banked" the ball into the pocket because from this distance the object ball can be hit from a big spectrum of angles and still go.
After all the responses you should be seeing a theme here. You can only supposedly "do" the over 90° cut shot with inside english and a level cue when you set it up in ways that allow for inadvertent "cheating" to be happening, and as soon as the possibility for those are removed you can no longer do the shot. That should tell you something.
As soon as you set it up like in Bob's diagram below, where it is away from the rail and it is no longer possible for you to hit rail first and spin into the object ball even though you didn't realize that is what you were actually doing, and as soon as you set it up where the angle of the shot is very clear and it is no longer possible for you to be shooting a shot that is actually less than 90° even though you might have thought it was more than 90°, and as soon as you move the object ball far enough away from the pocket that you can no longer cut the object ball less than 90° but have it go in anyway because from that distance the pocket takes almost anything, as soon as the possibility for those inadvertent cheats is gone so is your ability to be able to make the shot. You just didn't realize what was actually happening but now you do.
If you still want to try to prove to yourself or anyone else that you can cut a ball over 90° with inside english and a level cue, you have to do it in a way that doesn't allow for cheating, even accidental cheating, so you have to do it like in this diagram where those cheats aren't able to happen. I think the physics say it is impossible to do without a cheat.
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