So my friend is a rock climber and is thinking of going rope jumping. this involves tying a rope to to one side of a bridge, having it hang under the bridge and jumping off the other side. he asked me to come up with an equation that describes the max force experienced by the climber. the rope has a linear stretch force. so it has a nice K value. it has a max stretch of 30%. I was wondering what equations you guys could come up with? I came up with two but I made a lot of assumptions to make a nice solvable system.