A window washer weighing 825.6 N is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 262.5 N and is 4.034 m long. What is the force in each rope when the window washer stands 1.48 m from one end? Force in Rope 1 (Rope closest to the window washer.) =  Force in Rope 2 (Rope farthest from the window washer.) =

Figure for Question # 18. Y 18. A uniform plank is supported by two equal 120-N forces at X and Y, as shown. The support at X is then moved to Z (half-way to the plank center). The supporting forces at Y and Z are then: * O A. F_Y=240 N, F_Z=120 N O B. F_Y=200 N, F_Z=40 N O C. F.Y=40 N, F_Z=200 N O D. F_Y=80 N, F_Z=160 N O E. F_Y=160 N, F_Z=80 N

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A 14.0 m uniform ladder weighing 510 N rests against a frictionless wall. The ladder makes a 59.0°-angle with the horizontal. A. Find the horizontal and vertical forces (in N) the ground exerts on the base of the ladder when an 810-N firefighter has climbed 4.10 m along the ladder from the bottom. B. If the ladder is just on the verge of slipping when the firefighter is 9.40 m from the bottom, what is the coefficient of static friction between ladder and ground? C. If oil is spilled on the ground, causing the coefficient of static friction to drop to half the value found in part (b), what is the maximum distance (in m) the firefighter can climb along the ladder from the bottom before the ladder slips?