Two boxes are connected by a weightless cord running over a very light frictionless pulley as shown in the figure. Box A, of mass 8.0 kg, is initially at rest on the top of the table. The coefficient of kinetic friction between box A and the table is 0.10. Box B has a mass of 15.0 kg, and the system begins to move just after it is released. 
(a) Draw the free-body diagrams for each of the boxes, identifying all of the forces acting on each one.
(b) Calculate the acceleration of each box.
(c) What is the tension in the cord?
Definitions:
Price Level
refers to the average of current prices across the entire spectrum of goods and services produced in the economy.
Short-Run Aggregate Supply
The total supply of goods and services that firms in an economy plan on selling during a short time period, given the current price levels.
Aggregate Output
The total quantity of goods and services produced in an economy over a given period, often considered synonymous with real GDP.
Price Level
The standard price level of the wide variety of goods and services in the economy.
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