Question

a window washer is standing on the sacffold supported by a vertical rope at each end. the sacffold weighs 200N and is 3m long. what is the tension in each rope and when 700Nworker stands 1m from one end

Answer 1

By equilibrium of forces:

$$T_1+T_2-W_s-W_w=0.$$

By equilibrium of torques:

$$-1.5W_s-2W_w+3T_2=0.\\\space\\ T_1=333\text{ N},\\ T_2=567\text{ N}.$$