I'm posting this from the roof of a building because I can't figure out a safe way down. I've scoured the roof for anything useful, and all I found was a coping saw. I also found a 100 foot ladder, which is firmly connected to the roof (but its length is just hanging from the secured top rung). The building is unfortunately 200 feet tall. How can I use the coping saw to double the length of the ladder?
The wind is really strong, so I will not consider climbing down any arrangement which could possibly be blown apart - that is, if it is possible to separate pieces of the arrangement such that they would not longer function as a 200 foot ladder, I will not climb it. The ladder is unbendable, cannot be cut by anything other than the saw, and cannot be mended once cut. It starts out as one solid piece of material. The saw cannot cut anything other than the ladder and there are no other materials around. I am capable of making precise cuts, if necessary.
In short, how do I use one of these:
to double the length of one of these:
(It is necessary, for the intended solution, that the coping saw blade can be released on one side, threaded through an existing cut, and reattached; a keyhole saw would probably also work, but it would be difficult to make the necessary cut. The puzzle is not so much in how one physically makes the cut, but rather what cut is made. I have managed to double the length of the pictured ladder with the pictured tool.)