I have a question. I'm conducting a drop test for packaging material and I need to find the pressure at the point of impact. What I did was drop a 18 lb ball 18". I converted the mass to 3.629g and the distance to 0.4572m to work in S.I. units then used the equation 2ad=Vf^2-V0^2. Afetr doing the math I got my Vf=2.993 m/s^2, but now I have to convert that final velocity to pressure and I have no clue as to how to go about it. Can you assist?