I feel like I'm missing a large concept of the kinematics equation. Up until today, I have only used them for HALF of a trajectory (initial velocity and final velocity of 0 at the apex). But can you use them for an ENTIRE trajectory? So say something is fired from the ground and lands on the ground at the same level. If you plug in the initial velocity and use the entire flight time, will you get the same final velocity from these equations?? I'm so confused. Please help me get this sorted out before I take the MCAT.