1. The problem statement, all variables and given/known data In the figure , what value of Fmax gives an impulse of 7.1 Ns 2. Relevant equations 3. The attempt at a solution Impulse is the integral of force with respect to time which is the same the area under the force-time graph which is given by the area of the triangle: 0.5*Fmax*8s 7.1 Ns = 4s * Fmax Fmax = 1.775 N However that's not the right answer. Where did I go wrong? Thanks!