A 1.0 kg block is tied to the wall with a rope. It sits on top of the 2.0 kg block. The lower block is pulled to the right with a tension force of 20 N. The coefficient of kinetic friction at both the lower and upper surfaces of the 2.0 kg block is 0.40 (static friction). What is the tension in the rope holding the 1.0 kg block to the wall? What is the acceleration of the 2.0 kg block?