Hello everybody! My name is Nazia, and I’m from Australia . This is my first post, so please let me know if I do something wrong. I’m 15 and in grade 11. I seem to be having problems with Projectile motion. Recently, we were required to conduct an experiment, in which a marble was launched off a ramp. The ramp was a had two parts, one an incline was connected to horizontal tube, which was connected the to a tube that was elevated by 45 degrees of the bench. The ramp kind of looks like this: \ \_/ ( the left side lines are meant to be connected, to from one straight line) I’m having trouble calculating the initial velocity it leaves the ramp with. I’ve done only problems where the initial velocity was horizontal. However in this problem the initial velocity will have two components right? Does anyone have any suggestions how I work out the intial velocity?? Thanks Has it got something to do with, a loss in Potential energy equals a gain in Kinetic??