Hi All, I have a question concerning a rolling ball on a metal track. Basically I am designing a rolling ball sculpture and want to lay a bunch of elevated track (2 wires) up and down and around turns. I know that as the ball is rolling it is losing speed from friction, so as the track drops the ball picks up speed ,and when the track inclines again it needs to level out at a lower elevation. Is there just a straight formula to calculate the drop in height needed based on the length of track? I have a statistics backround so am good with math but have never attempted to engineer something on paper. Thanks for the help!