4) (26 pts) Block A has mass ma and block A B has mass mg. Blocks A and B are connected as shown by a light cord passing around an ideal, frictionless pulley. The coefficient of kinetic friction between all |B surfaces is given by i. Block B is being dragged to the left at a constant speed by force F. a) (6 pts) Draw a free body diagram for block A. b) (6 pts) Draw a free body diagram for block B.

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