Cuttung shots with inside english.and the contact point.
- Thread starter LAMas
- Start date
You've mixed some of the parameters up for swingers vs hitters in golf & the contact for a driver in golf is about 1/2 the time it is for pool.
http://www.golf-simulators.com/physics.htm
When the clubface collides with the ball it's total contact time is approximately 0.0005 seconds and the peak force applied to the ball can be as high as 4000 pounds
http://www.golf-simulators.com/physics.htm
However it's only about 1/200th of a second for the 'average' iron. The difference is due to the different length of the clubs & the different lofts for those lengths.
As far as pool goes, I'll just say that we don't seem to see eye to eye on several issues.
Best 2 you & All,
Rick
Rick,
I don't play baseball or golf, but there may be some analogous comparisons and physics.
I think that the quality of the stroke and follow through are relevant.
I think that a tight closed bridge is different than an open bridge in the delivery of the stroke/cue impacting the CB and follow through..
I think that a soft tip dwells longer on the CB than a hard tip - chalk being equal.
THROWING, STRIKING AND KICKING
1. Muscles contract more forcefully if they are first put on stretch, provided they are not overstretched. Windup in pitching, football pass, javelin throw, and volleyball serve are all important.
2. Awkwardness and unnessary fatigue may be do to unnecessary movements in the performance of a motor skill.
3. Adjustments in the neuromuscular mechanism is made through practice. Therefore, you obtain �skillful� and efficient performance.
4. Most efficient type of movement in throwing and striking skills is ballistic movement.
a. Ballistic: Movements which are initiated by vigorous muscular contraction and completed my momentum.
b. Non-Ballistic: Constant muscular action throughout the movement.
General points on ballistic movement:
? Beginners tend to concentrate on non-ballistic types of movements, especially if they are concentrating on accuracy of aim rather than on a ballistic type of movement. This type of movement results in �moving fixation� or a slow, tense movement.
? A beginner should concentrate on form rather than accuracy if they are to master the skill of moving ballistically.
? Termination of ballistic movement: (1) contracting antagonistic muscles; (2) body part reaches the limit of motion (stopped by passive resistance of ligaments or other tissues); (3) interference of an obstacle.
5. A lever appropriate for the task should be used. A long lever arm is desirable for movements requiring range or speed. Object will move only if the force is of sufficient magnitude to change the object�s inertia and restraining forces. Restraining forces include: (1) friction; (2) wind or water drag; (3) internal resistance. Warmup will help reduce internal resistance.
6. Force exerted by the body will be transferred to an external object in proportion to the effectiveness of the counter of the feet against the ground.
7. Optimum summation of internal force is needed if maximum force is to be applied to move an object. Heavier body segments typically move first and the lightest segments last.
8. Force must be applied over time for a change in momentum to occur. If maximum momentum of a body segment and implement is desired, maximum impulse must be applied over a long period of time. This places importance on follow through.
9. Force applied in line with the center of gravity of the object will result in linear motion of the object.
10. If force is applied off-center to a freely movable object, the object will rotate (rotary motion).
11. The greater the velocity and mass (up to a point) of the striking implement, the greater the velocity of the struck ball. A good baseball player may use a heavier bat. Too heavy a bat, however, is inadvisable because it takes away from angular velocity.
12. The greater the coefficient of restitution (elasticity) of the ball and of the striking implement, the greater the speed of the struck ball.
13. Factors determining the direction taken by the struck ball: (1) direction of the striking implement at the moment of contact; (2) relation of the striking force to the ball�s center of gravity; (3) degree of firmness of grip and wrist at moment of impact; (4) principles affecting rebound (elasticity of striking implement and effects of spin)
http://www.cwu.edu/~acquisto/movement.htm
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Just a quick word on strokes...
Anyone familiar with what some call the banana shot? It is a shot when the cue ball has lots of topspin going into a cushion, bounces out then follows back into the cushion. This can happen just once or several times.
Now onto the stroke that I need for this...
I can try all day long to do this with a short punchy follow through and a short backswing hitting as hard and as high in the cue ball as I like but I cant get the action onto the cue ball. Now, if I take the cue all the way back to my bridge, have a slight pause and concentrate on really exaggerating my follow through I can do this effortlessly. It isn't the follow through that makes this happen, obviously. Its the timing of the stroke that having a lengthy back stroke and long follow through produces. It applies tremendous amounts of spin onto the cue ball, be it because of a more accurate strike, more power or the timing. Either way the type of stroke does matter.
Crack on...
Anyone familiar with what some call the banana shot? It is a shot when the cue ball has lots of topspin going into a cushion, bounces out then follows back into the cushion. This can happen just once or several times.
Now onto the stroke that I need for this...
I can try all day long to do this with a short punchy follow through and a short backswing hitting as hard and as high in the cue ball as I like but I cant get the action onto the cue ball. Now, if I take the cue all the way back to my bridge, have a slight pause and concentrate on really exaggerating my follow through I can do this effortlessly. It isn't the follow through that makes this happen, obviously. Its the timing of the stroke that having a lengthy back stroke and long follow through produces. It applies tremendous amounts of spin onto the cue ball, be it because of a more accurate strike, more power or the timing. Either way the type of stroke does matter.
Crack on...
Ron Swanson
Banned
I would need to see that shot to believe it.
Incidentally, i have found extreme cut angles go like this: hard (fast) inside and slow (spinning) outside produce similar results. it's doubtful you could cut the black in from the yellow spot with outside on the CB as the ball would have lost most of its spin by the time it got there.
Ron Swanson
Banned
Isn't it just easier for us all to agree follow through is tremendously important, and drop the bizarre notion it isn't?
I think follow through is definitely important. Where I disagree, is that more follow through produces more action on the cue ball.
In a scenario where all conditions are static (table, balls, cue/tip, humidity, cloth, etc.)...
Player A plays a straight in draw shot hitting the CB two tips below center, and has a 4" follow through.
Player B plays the same shot, but with an 8" follow through.
If both player's cues are moving at the same speed at the moment of impact, then the results would be identical.
Good Morning E,
Thanks for the info & the technical wording & structure. I think everyone should read this with a completely open mind.
Thanks Again & Best 2 You & All,
Rick
Peace will come to the middle east before people can agree on here.
As for the thin snick on the black...
Try it. Sight the shot centre ball and then hit it centre ball. If, like me you hit it thick then just sight it as a centre ball pot again but in the address position just shift the tip with your bridge hand a little to the right and hit it hard. If you make it centre ball you're doing sumat I'm not and you've got a hell of a decent set of eyes on you. Sighting such a thin cut at that distance is not the norm for any calibre of player and we have a tendency to worry about missing the black ball all together. Depending on what your cue is capable of in terms of deflection is how much you need to go to the right. Mine is a simple ebony and ash Parris one piece and it deflects a hell of a lot so I only have to shift to the inside a little.
I understand exactly what you mean.
Also, IMO, Grip Pressure & what it does to the arm, wrist, & hand can affect the stroke & the stroke affects the ball.
Best 2 you & All,
Rick
It's all just about the force applied to the top of the cb. You can get more speed with a longer backswing than you can with one of only a couple of inches. Length of follow through is immaterial to the result of the shot. But is only a result of taking longer to come to a stop due to higher speed.
To do the banana shot, you simply have to have more forward force applied to the cb than the rail and the friction of the cloth will counter. It is the same principle with any draw shot. It just takes less initial force with a draw shot to overcome the "negative" forces acting on the cb.
Yeah I've hear a lot of very good snooker players try to explain grip pressure for the types of shots that come up in the game. Some explain it better than others. I think Ronnie does a decent job in a youtube video. In it he talks about the stun-run shot. Same tip placement for each shot but the harder he grips the cue the less the cue ball travels and that's how he uses grip pressure for cue ball control. Each shot he starts with a loose-firm grip but its how he clenches the cue on the front swing.