Quick question about Cut Induced Throw

A

Amaury

Member
Hello,

when you cut a ball (for example 45 degrees) , does the object ball goes straight with an initial angle less than 90°, or does it start on the tangent line THEN does a slight curve?
I am asking because every time I pot a ball while compensating for throw, I first think I missed it and then the OB finally goes in. Just tell me if my eyes are wrong.

Thanks
 
Solution
Bob Jewett
straightline said:
Any time the separation deviates from the line of centers, something somewhere, curves.
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And if Fat Fred is standing on the right side of the table, he will help the ball curve around an obstruction. Gravity rules!

The question is whether the curve is significant on any normal shot. It is not. The OP should worry about it no more than he should worry about where Fat Fred is standing. Unless the floor really needs bracing.
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straightline said:
The line of centers passes energy which way?
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The friction of the balls rubbing together horizontally "passes energy" which way?

The combined forces move the OB during contact in the straight squirted direction - no changes in direction after contact.

straightline said:
And then the ball ignores that entirely by heading off another way - um defying physics?
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What would defy physics is the ball curving after contact with no masse force applied.

pj
chgo
 
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Patrick Johnson said:
The friction of the balls rubbing together horizontally "passes energy" which way?

The combined forces move the OB during contact in the straight squirted direction - no changes in direction after contact.


What would defy physics is the ball curving after contact with no masse force applied.

pj
chgo
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That would defy Newtonian physics probably not everything physics.
Fact is if you thin a ball, you can get it to clear an edge. Not just pass an edge but go around an edge. Don't even need extra chalk like in za doktas video.
 
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straightline said:
I mean quantum mechanics and whatever the actuality is. What exactly am I proposing?
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You're proposing that the primary (line-of-centers) CB/OB force and the throw force take effect at different times - first the CB/OB move together in the "throw direction" before the OB moves away in the "line of centers" direction.

In fact, the OB moves in only one direction: the direction created by the combined line-of-centers and throw forces. No curves or delayed secondary actions.

pj
chgo
 
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Patrick Johnson said:
You're proposing that the primary (line-of-centers) CB/OB force and the throw force take effect at different times - first the CB/OB move together in the "throw direction" before the OB moves away in the "line of centers" direction.

In fact, the OB moves in only one direction: the direction created by the combined line-of-centers and throw forces. No curves or delayed secondary actions.

pj
chgo
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They average out proportionate to angle. I'm not a physicist obviously just describing how the shot works.
Shot like this for instance:

Skids2.jpg



Shot like this will often clear the obstruction and head clear to the blocked side of the pocket. (Yeah looks clear anyway but it's easier if you set it up yourself.)
 
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actually electrons traveling parallel to a surface tend to attract each other. so in a wire the current tend to stay towards the cross section/center. but surface occurs as well as some outside. something to do with the relativistic nature of electromagnetics. maybe amperes law might explain it if interested.
 
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maha said:
actually electrons traveling parallel to a surface tend to attract each other. so in a wire the current tend to stay towards the cross section/center. but surface occurs as well as some outside. something to do with the relativistic nature of electromagnetics. maybe amperes law might explain it if interested.
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Where is Fat Fred when you need him? He's not exactly a live wire, though.
 
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mareh said:
MIght there be any relation to curling, when a player releases a stone and applies left or right spin, and the stone goes arround opponents stone?
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A curling stone has a much larger contact area with the ground than a pool ball has with the table, not just because of their relative sizes, but also because the stone sits on its large flat surface vs. the ball's contact "point" - so not much ball/table interaction in common. Plus, of course, that massive difference in weight.

pj
chgo
 
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Please pool players, do not talk about electricity and electomagnetics if you do not have a degree. I really hurts those of us who actually know about the subject.
 
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