I am currently working on constructing a Gauss Cannon using the simple method of some chrome balls with a neodymium magnet on a track arranged thus: 0_____||0000____ so when the ball (0) on the left is released it is attracted by the two magnets (|) and smashed into them, and with the same principle as the Newton’s cradle the final ball is fired off the end with a much greater force than the initial ball that hit the magnets. What i would like to know is how to calculate the velocity and therefore the force at which the 22m Chrome bullet is fired from the end of the 4 ball line up. Also what effect does the starter balls' velocity have on the final balls velocity and how can i make the system as fast and as powerful as possible. I am currantly in use of 2: 22mm dia x 10mmA N42 - NiCuNi plated (13.8kg Pull) (roughly 4500 gauss) magnets and i am using 5 chrome balls the the arrangement above. Any infomation would be helpful. Thanks.