1. The problem statement, all variables and given/known data One 3.5 kg paint bucket is hanging by a massless cord from another 3.5 kg paint bucket, also hanging by a massless cord. (a) If the buckets are at rest, what is the tension in each cord? (lower cord) (upper cord) (b) If the two buckets are pulled upward with an acceleration of 1.80 m/s2 by the upper cord, calculate the tension in each cord. (lower cord) (upper cord) 2. Relevant equations I'm not sure on what equations to use or anything. 3. The attempt at a solution Everything I've been doing is wrong. I tried adding it up and dividing by gravity, then subtracting and dividing by gravity and I don't know what else to do.