The 1.0 kg block in FIGURE EX7.24 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 μ_k= 0.40.
a. What is the tension in the rope attached to the wall?
b. What is the acceleration of the 2.0 kg block?

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1.0 kg 20 N 2.0 kg FIGURE EX7.24