4) Block A has mass ma and block A B has mass mB. 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 F B surfaces is given by Hk. Block B is being dragged to the left at a constant speed by force F. Draw a free body diagram for а) block A. b) Draw a free body diagram for block B. c) Find an expression for the tension in the rope in terms of uk, mA, and constants d) Find an expression for force F in terms of uk, mA, M B, and constants.

4) Block A has mass ma and block A B has mass mB. 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 F B surfaces is given by Hk. Block B is being dragged to the left at a constant speed by force F. Draw a free body diagram for а) block A. b) Draw a free body diagram for block B. c) Find an expression for the tension in the rope in terms of uk, mA, and constants d) Find an expression for force F in terms of uk, mA, M B, and constants.