1. The problem statement, all variables and given/known data Suppose that the 1 kg standard body accelerates at 3.40 m/s2 at 155° from the positive direction of the x axis, owing to two forces, one of which is F1 = (2.6 N)i + (4.8 N)j. What is the other force in unit-vector notation and as a magnitude and direction? i-component of the other force? 2. Relevant equations F=ma 3. The attempt at a solution First I tried to find the x-component of F2. F2,x = max - F1,x F2,x = (1)(3.4 cos155) - (2.6 cos 155) I got F2,x to be -0.725 N but thats not the correct answer For F2,y I did: F2,y = may - F1,y F2,y = (1)(3.4sin 155) - (4.8sin 155) But its also wrong. Any ideas on what Im doing wrong?