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View Full Version : Fred, how did I do this shot?



bluewolf
09-04-2003, 08:47 AM
I made this shot on a 9 ft table at the end of a practice session. Since the cb was directly in front of the ob, it looked impossible to ww for me to make this. I did not think it was impossible but then I do not know much, just tried the shot.

I did this. Inside english with a little bottom and slow speed, like 1.5 rail speed.

http://endeavor.med.nyu.edu/~wei/pool/pooltable2.html

START(
%AD1X5%BL7P8%CJ5O4%DL7N1%EM7P1%FK6P1%GK6N8%HM7N8%I L7O4%JK6M5
%KJ5P7%LJ5N2%MK6Q4%NJ5R0%OJ5M0%Pl2X7%WE1W4%Xk5Y4%]C4Z7%^C7Y2
)END


ww said he would have hit this hard. I hit soft, which slow rolled the ob into the pocket, keeping it from bouncing out from the rail. I am wondering if you know why this sank. Like did swerve enter in,in this case to my benefit or what?

I have done this shot before, only with a little less cut, like this one. This one is also a low percent shot for me like 30% at the most.

START(
%AD2Y0%BL7P8%CJ5O4%DL7N1%EM7P1%FK6P1%GK6N8%HM7N8%I L7O4%JK6M5
%KJ5P7%LJ5N2%MK6Q4%NJ5R0%OJ5M0%Pn2V0%WD6W5%Xm3V8%]C3[6%^D3Y5
)END

I guess the reason I want to know the physics is in case it comes up again, so I will know how to do the shot.

Thanks.

Laura

Fred Agnir
09-04-2003, 10:19 AM
<blockquote><font class="small">Quote bluewolf:</font><hr> I made this shot on a 9 ft table at the end of a practice session. Since the cb was directly in front of the ob, it looked impossible to ww for me to make this. I did not think it was impossible but then I do not know much, just tried the shot.

I did this. Inside english with a little bottom and slow speed, like 1.5 rail speed.

http://endeavor.med.nyu.edu/~wei/pool/pooltable2.html

START(
%AD1X5%BL7P8%CJ5O4%DL7N1%EM7P1%FK6P1%GK6N8%HM7N8%I L7O4%JK6M5
%KJ5P7%LJ5N2%MK6Q4%NJ5R0%OJ5M0%Pl2X7%WE1W4%Xk5Y4%]C4Z7%^C7Y2
)END
<hr /></blockquote>

I'll exaggerate the motion of the cueball to what I think most likely happened.

START(
%AD1X5%BL7P8%CJ5O4%DL7N1%EM7P1%FK6P1%GK6N8%HM7N8%I L7O4%JK6M5
%KJ5P7%LJ5N2%MK6Q4%NJ5R0%OJ5M0%Pl2X7%Qc6U9%RY6T9%S C3T7%WE1W4
%Xk5Y4%YD7W6%ZC3V9%[n0Y4%\s0Y3%]C4Z7%^C7Y2%eB0b4%_D3V7%`Z7V4
%ak0X7
)END

The blue arrow is your stroke line (with low left).

The yellow arrow is the exaggerated cueball path.

"A" represents the squirt angle (straight, away from the english).

"B" represents the swerve path (curving toward the same side as the english).

The point "C" represent where the cueball hit on the cushion.

The little green arrow show the rebound of the cueball as it kicked the object ball after the cueball rebounds from the cushion.

IMO, this type of "short kick" is the only way to make this ball.



HTH,

Fred

bluewolf
09-04-2003, 10:26 AM
Thanks Fred!!!! So hitting it soft gave it more swerve,so it could curve back for the little kick? Would not have the harder hit that ww suggested have resulted in too fat of a hit due to less swerve????

Laura

Fred Agnir
09-04-2003, 10:47 AM
<blockquote><font class="small">Quote bluewolf:</font><hr> Thanks Fred!!!! So hitting it soft gave it more swerve,so it could curve back for the little kick? Would not have the harder hit that ww suggested have resulted in too fat of a hit due to less swerve????

Laura <hr /></blockquote> Thinner, not fatter. Look at the diagram again. A harder hit will have the "A" section longer, allowing less distance for the swerve ("B") to bring the cueball back.

Caveat: that is, it would be thinner if if you aim on the same line. I think Ray must have thought you could cut it in, in which case you'd have to hit it pretty hard. But, I think you must have short-kicked it in, which doesn't require as much speed. I'm sure Ray can show you both shots tonight.

Fred