Help on projectile motion problems plz? Someone who is 1.6m tall throws a ball 41 deg above the horizontal at 9.4m/s. A) How far away from the person will the ball land? B) How long will it be in the air? C) What is the ball's maximum height? Formulas: df = di + vi(t) + .5(a)(t^2) others? Attempt: Velocity of the ball in the y = 9.4(sin41) = 6.167m/s Time: 0 = 6.167 + (-9.8)(t); t = 0.63s Max vertical distance = 0 + (6.167)(.63) + .5(9.8)(.63^2) = 5.83002 Is this right? I don't know if I did any of that right, and I don't know how to do the rest of the problem.