okay i know how do do type one and type 3 projectiles but there is this certain kind of type 2 that i can't figure out. if the problem gives me a initial velocity and an angle of 30 degrees i am okay. BUT for this kind i don't know what to do: "A gymnast becomes a projectile by doing a flip that gives here a horizontal range of 1.80 neters. If she took off at an angle of 60.0 degrees, determine: 1. initial velocity 2. the maximum height that she attains PLEASE HELP ME i have a test tommorow and gotta figure this out. Any help would be appreciated. incase your wondering i know a few formulas like y =x tan(theta) - gx^2/ 2vi^2cos^2 (theta), also vf^2=vi^2 +2ax, and all the derivitives, I just don't have any clue on how to do this one.