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(a) What is the minimum force of friction required to hold the system of Figure P4.58...

(a) What is the minimum force of friction required to hold the system of Figure P4.58 in equilibrium? Let w1 = 100 N and w2 = 35.0 N. N (b) What coefficient of static friction between the 100 N block and the table ensures equilibrium? (c) If the coefficient of kinetic friction between the 100 N block and the table is 0.21, what hanging weight should replace the 35.0 N weight to allow the system to move at a constant speed once it is set in motion? N

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