How Can It Be?

Bob Jewett said:
It's tempting to think that people will act rationally but how do you explain this:
http://www.youtube.com/watch?v=9bZkp7q19f0
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The new Rick Roll? Damn...you got me.

BigDaddyInc. said:
It happens all the time on the 8or9 ball break shot with high english, cb bounces back and goes forward. But of course the whole mass deal is ideal for it to happen. Why would the cb in 3c be lighter? i know the balls are bigger than the ones for pocket billiards, to me they would be heavier if anything.
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It's relative to the objects that collide. I don't know what the regulation weight is, or if the red is constructed differently than the yellow and white. It could very well be lighter. *shrug*

Being airborne might explain the bounce. There's interaction with a large "immovable" mass, the slate. It seems logical to me, but I have my doubts that the shallow angle would be enough.

All I know for sure is that the shot was staged, due to it being recorded the way it was. The other certainty is that it bounced odd. Only 2 people know for sure, the guy recording and the guy shooting.
 
holland said:
The new Rick Roll? Damn...you got me.
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You're welcome.:thumbup:

Being airborne might explain the bounce.
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Only if the angle of descent puts the path of the cue ball "under" the center of the object ball. If that path is going straight at the center of the object ball at contact, the cue ball will stop dead on contact. That's if the balls are the same mass and no energy is lost in the collision. If energy is lost in the collision -- and some always is -- the cue ball will continue through a little.

Only 2 people know for sure, the guy recording and the guy shooting.
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The guy with the camera may not have been clear about what was happening. As for the shooter, we can't be sure. I played in a rec room for nearly a year without realizing that the cue ball was about 7 sizes smaller than the object balls. It was really, really easy to draw the ball and my position play developed to match. After that, I went down to the local pool hall and was helpless with a cue ball that wouldn't draw -- because it was either the right weight or a bar ball.
 
There is quite a lively discussion about this shot over in the carom sub-forum. Ira Lee has posted a video of him making the shot -- and he does it without waxing the cue ball. Also, someone with a pool simulator that can change the masses of the balls has put up a link to a simulated series of videos with increasing OB/CB mass ratio. The thread is

http://forums.azbilliards.com/showthread.php?t=320772
 
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