Wondering (as im studying it...) what was Gilly gravity acceleration, and doing math with this: "y=y0+v0t+1/2at^2", with the info in the video; (y=0, y0=150m, t= ~100s) i get around 2.8m/s^2 and the wiki says 0,04m/s^2; so i ask: Is there other ecuation to know the gravity (surely) or this ecuation just doesnt work with this kind of things or... i dont know. Am i confused xDD?