One 3.2-kg pain bucket is hanging by a mass less cord from another 3.5-kg paint bucket, also hanging by a mass-less cord, as shown in Fig.4-44.
(a) If the buckets are at rest, what is the tension in each cord?
(b) If the two buckets are pulled upward with an acceleration of 1.60m/s2 by the upper cord, calculate the tension in each cord.