Block A has mass mA and block 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 surfaces is given by μk.Block B is being dragged to the left at a constant speed by force F. 1)Draw a free body diagram for block A. 2)Draw a free body diagram for block B. 3)Find an expression for the tension in the rope in terms of μk, mA, and constants

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!