The force shown in the force-time diagram acts on a 538 g object. Find the final velocity of the object if it is initially at rest. Answer in m/s. I correctly found the impulse by determining the area underneath the curve. It's 7 N s. I know that we can determine the final velocity by using this equation: I=m∆v. I also saw a topic somewhere on this site where someone suggested the same formula. I used this formula and I get the wrong answer. 7 = .583(vf - 0) vf = 13.011m/s I also tried inputting -13.011m/s and that was also incorrect. I don't know where I'm going wrong.