1. The problem statement, all variables and given/known data In the figure , what value of F_max gives an impulse of 6.8 Ns? http://img76.imageshack.us/img76/1782/09ex05.jpg [Broken] 2. Relevant equations Integral of F with respect to time equals impulse 3. The attempt at a solution I tried doing two things, and they were both wrong. First, i tried the integral of F with respect to time from 0 to 8 = 6.8. Ft from 0 to 8 = 6.8 F(8) - F(0) = 6.8 F = 6.8/8 F = 0.85 I realize that is wrong though, since the picture they give us isn't of constant force. So then I tried using the area of a triangle: Area = (1/2)b*h Area = (1/2)*8*h 4h = 6.8 h = 6.8/4 = 1.7 So I entered 1.7 into the website, and it said it was wrong. If that didn't work, I have no idea what else I could do to find it.