1. The problem statement, all variables and given/known data http://i.imgur.com/7DzVr.png 2. Relevant equations Kinematics Equations: Vf = Vi + at Δy = Vi(t) + 1/2 * a * t^2 Vf^2 = Vi^2 + 2aΔy Δy = (Vi + Vf)/2 * t 3. The attempt at a solution My teacher and tutor don't know how to do this and some strangers told me that I had to measure the distance between each bomb with a ruler and I measured the length of the plane as well and the problem gives us the length of the plane so we can find the scale like that. My ruler gave length = 10.85mm and 1.5mm, 2.1mm, and 1.4mm respectively (the first one being the one farthest from the plane). I didn't count the rest of the bombs because it is irritating and I'm not even sure if I have to do that. If I really do then I'll measure the rest but this question counts for (few) marks even though my teacher doesn't know how to do it! Any help would be GREATLY appreciated! Thanks in advance!