Question

a 200 N wooden platform is suspended from the roof of the house by ropes attached to it's ends. it has a total length of 4.2 meters. a painter weighing 650 N stands from the left end of the platform. find the tension in each end of the ropes .

Answer 1

Sum of Forces and Torques is zero.
T1 + T2 = 650 + 200
200(2.1) + 650(number omitted) - T2(4.2) = 0
Use 2nd to find T2, plug into first for T1.