(a) What is the minimum force of friction required to hold the system of the figure below in equilibrium? Let w, = 120 Nand w, = 59.0 N.(b) What coefficient of static friction between the 120 N block and the table ensures equilibrium?(c) If the coefficient of kinetic friction between the 120 N block and the table is 0.295, what hanging weight should replacethe 59.0 N weight to allow the system to move at a constant speed once it is set in motion?W2

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