Hi, I would like to solve this problem. Pulley is attached to the green rope that is 2' long. The weight is 1 unit. a and b are unknown. The green rope's point of attachment is 20' higher than that of the blue rope. The distance between two walls is 20'. I would like to solve this for the forces in the green rope and the angle the green rope is making with the wall. I am not sure how to proceed. Thanks.