Roulette ball trajectory (after impact)

AI Thread Summary
The discussion focuses on the trajectory of a roulette ball after it impacts the small bumps on the wheel, referred to as diamonds. Understanding the ball's new direction post-collision requires knowledge of its speed, mass, and the angle of impact with the bumps, which can be modeled as ellipses or circles. Participants share insights on how the ball behaves upon hitting these bumps, noting that impacts at different points can lead to varying outcomes in the ball's path. There is also a request for assistance in determining when the ball separates from the roulette wall and begins its descent. Overall, the conversation emphasizes the complexity of modeling the ball's movement in roulette due to the influence of multiple factors.
Alin
Messages
1
Reaction score
0
Hello,

Homework Statement


This is not really a homework, but it can be viewed as one. I am trying to design the animation for a roulette ball, but I stumbled over a problem. On a real roulette wheel just over the numbers, there are some small bumps (i don't know the technical name) that make the trajectory of the ball change. Knowing the direction, the speed and the mass of the ball, what will be the new direction of the ball, after the collision with the bump?

The ball is moving over a curved trajectory, but, on small portions, it can be considered linear. Also the bumps can be approximated with an ellipse, or even a circle.

Any help is appreciated... some links or even a start point for my research.

Thanks in advance.
 

Attachments

  • roulette.jpg
    roulette.jpg
    18.4 KB · Views: 453
Physics news on Phys.org
Hi alin, que bumps are diamonds , i know that if the ball hit the diamond in the top of the diamond jamp to the next diamond and falls to yhe numbers, and if it hit a in the middle and botton falls directly to the diamonds. This information i get it from this link:http://www.myrulet.com/forums/advanced-roulette-play/roulette-computer-inside-mobile-phone/
(post 19) i hope, that is usefull.
i am also trying to unsderstand the movemnt of the ball in roulette, i have a problem with finding the exact moment when ball get separete of the roulette wall, and start it descend, if you can help me eith that i will be very thankfull. ( sorry with my spelling i am from chile and i don't know very well to speek in english)
 
http://www.myrulet.com/index.php/roulette-ball-deceleration.html


That is how the ball deccelerates on particular wheel.
But it is always different.
How it will bounce it depends on many factors.
Yu can find some roulette video spins on utube, it may help you.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...

Similar threads

Back
Top