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Entropia
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does anybody know of any good sites that explain the physics and geometry of playing billiards (pool) ?
This is probably all stuff you know but the most basic rule is just the geometric principle that the angle of incidence will equal the angle of reflection. So if the ball hits the side of the table at an angle of 25 degrees, it will rebound at that angle. If a ball hits another ball, the angle that it bounces off at will be similar to the ball bouncing off a wall tangential to the surface of the (struck) ball. When you hit the cue ball, the momentum from the stick is transferred to the cue. The cue transfers part of its momentum to whatever it hits. The total momentum is conserved, so that knowing the initial conditions should lead you to predict the outcome with vector analysis.
Originally posted by schwarzchildradius
I've noticed that if I move the stick a shorter distance before it strikes the cue the cue bounces back less after it hits a ball. Lower momentum gives you less friction.
Understanding pool geometry is crucial in billiards physics because it allows players to predict the path of the cue ball and the object ball during a shot. This knowledge can help players strategize and improve their accuracy in making shots.
Some great resources for learning pool geometry in billiards physics include online tutorials, books, and instructional videos. There are also many mobile apps and online forums dedicated to teaching the fundamentals of pool geometry.
The angle of incidence, or the angle at which the cue ball strikes the object ball, plays a significant role in determining the path of the cue ball. Depending on the angle, the cue ball can either bounce off the object ball at a similar angle or deflect at a different angle.
Spin, also known as English or side spin, is when the cue ball is hit off-center, causing it to rotate as it travels. This spin can greatly affect the trajectory of the cue ball, allowing players to manipulate the direction and speed of the object ball.
By understanding the principles of billiards physics, players can improve their accuracy, consistency, and strategy in making shots. This knowledge can also help players anticipate and plan for difficult shots, ultimately leading to a better overall performance in pool.