In: Physics
(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