I went climbing with a friend of mine the other day. And To be able to toprope two different routes that where next to each other he set the diversion up like in the scenario B I sketched in the attached image.
Now, I somehow feel like that will put hella stress on the rope, and possible on the anchors, because the rope is running (almost) horizontally for a few meters. I'm not sure if that's right, though.
Is it a similar scenario force-wise as in the 3rd pictures on Ben's answer on this post:https://outdoors.stackexchange.com/questions/5425/why-should-the-angle-in-a-rope-attached-to-two-anchors-be-60-degrees-or-less ?
Can anyone tell me what the forces are and how to calculate the forces that act on the rope and the anchors in the 3 different scenarios I sketched?
The blue circle in A and C are where the rope is fixed, the U-shaped symbols is a (assumed frictionless) rope diversion.