I am doing an analysis on an actual roller coaster and have Altitude graphs as well as Y and Z acceleration graphs. I am just having trouble with a few things: 1. With the altitude graph (height vs. time), there is a bit with an incline. Is it possible to find the velocity (it is uniform velocity) that the train is traveling at? I did a linear fit on the incline to find velocity and I just realized later that it only accounts for the Y component of the velocity. 2. Is it also possible to find the angle of inclination using an altitude graph? If so, could someone give me a few hints because my method of finding the height difference, the distance across using d = vs after the velocity is found and then using Pythagoras and Trigonometry to find it out seems flawed.