budshot said:
Skeezicks, i c wat ur saying, we just have to take extra care when hitting an object ball that is too near the cue ball.
is it saying that it's much more easier to hit a touching cue ball and object ball. what will coz hitting a touching ball to foul, is it only what zim said that if it goes with the same speed as that of the object ball, is there anything else?
Here is the double hit rule.
http://www.wpa-pool.com/rules.htm
go to 3. General Rules for Pocket Billiards
go to 3.23 FOULS BY DOUBLE HITS
"If the cue ball is touching the required object ball prior to the shot, the player may shoot toward it, providing that any normal stroke is employed. If the cue stick strikes the cue ball more than once on a shot, or if the cue stick is in contact with the cue ball when or after the cue ball contacts an object ball, the shot is foul. (See Rule 2.20 for judging this kind of shot.) If a third ball is close by, care should be taken not to foul that ball under the first part of this rule."
What happens in a double hit is this:
The tip hits the cue ball. (
first time)
The cue ball leaves the tip almost immediately.
The cue ball travels a short distance and hits the object ball.
(remember we are talking about the balls being close but not touching)
The cue ball is slowed or even stopped by the object ball.
The cue stick, still having some forward momentum (no matter how hard you try to shorten the follow through), travels forward and hits the cue ball a
second time.
Here are a couple of ways to help you determine if you double hit the cue ball:
a) If hit with low spin, the cueball will penetrate the space occupied by the object ball (at the second hit) or even travel past it before the bottom spin catches and draws back. With no double hit there is no forward momentum of the cue ball, it will draw back from the point of contact.
b) If hit with high spin or center ball, the cue ball will follow the object ball down table at about the same speed. With no double hit the cueball will stop momentarily until the spin catches on the cloth, then it will either stop right there (center ball hit) or it will follow down table at a much slower speed than the object ball is traveling (high spin).
Now, the first sentence of Rule 3.23 above addresses the
special case of the frozen cue ball - object ball pair.
"If the cue ball is touching the required object ball prior to the shot, the player may shoot toward it, providing that any normal stroke is employed."
This is what happens in this case:
The tip hits the cue ball. (
first time)
The cue ball - object ball pair start to move as though they were one, leave the tip, and travel down table.
That's it. There is no second hit on the cueball.
The rule is poorly written. the third sentence refers to the "first part of this rule," but it is actually referencing the second sentence, not the first. The first sentence should be moved to the end, and the rule should read like this:
3.23 FOULS BY DOUBLE HITS
"If the cue stick strikes the cue ball more than once on a shot, or if the cue stick is in contact with the cue ball when or after the cue ball contacts an object ball, the shot is foul. (See Rule 2.20 for judging this kind of shot.) If a third ball is close by, care should be taken not to foul that ball under the first part of this rule. If the cue ball is touching the required object ball prior to the shot, the player may shoot toward it, providing that any normal stroke is employed."
