Recent content by shlomi123

Hey I still have a problem with this formula Which is from here: http://pingless.co.il/roulette.pdf#page=3 (1) I don't know from where in the wheel I should put the x-axis (zero angle) and (2) I don't know to define the θ(0) where the ball starts the orbit, please help me. << Mentor Note --...

Hey but actually it's not make sense the ball orbited the wheel only 3.34 times it should orbit 11 times and more as you can see from this movie:

https://www.physicsforums.com/attachments/xxcc-jpg.232282/ This equation for the ball position of the roulette game taken from here: http://pingless.co.il/images/APCCAS08.pdf#page=3 This is my result: Rrim = 14 ballPosition = (30/180)*3.14 ballVelocity = 88/Rrim (Convert inch/sec to rad/sec)...

Hey I think the acceleration is wrong because -30 inch/sec should stop the ball at speed 90 inch/ sec in 3 seconds do you agree? So the actual acceleration should be -5-10 inch / sec

Hey thank you, but I'm not happy from the results, Trim should be 18 as you can count from this movie Because Trim is the time the ball is falling from the rim it completes about 11 circles and it takes 18 seconds and the formula says it takes only 4.7 seconds What else could be wrong here

Hey thank you for your note, this is my calculations after the radians / sec change: Rrim = 14 TrimCoefficient = -1/(-30/Rrim) print("TrimCoeff: "+str(TrimCoefficient)) ballVelocity = 88/Rrim print("ballVelocity: "+str(ballVelocity)) # (65 - 88) / (1.36 - 1) Gravity =...

And also if someone can help me to solve why the units don't fit If you substitute all the units you get -S^2/I*(I/S + 1/S) = S+S/I And it should be seconds only why you get +S/I

The roulette prediction algorithm is described here: http://pingless.co.il/roulette.pdf And I have a problem with the formula attached Where teta θ is position, velocity and acceleration of the ball. g is garvity force. r is the ball radius from center of the roulette. a is stator incline...