Originally Posted by Tjalling Weideman
I invite you to walk in my shoes f or a while. I' am a Dutch civil engineer and think that my pictures of the equilibrium of forces at the end of the hammock are right.
This US civil engineer agrees with your diagram!
Originally Posted by Frawg
PMFJI... TW, I believe matto was commenting on his own theory, not challenging yours. Seemed to me he was just trying to square his inuition with what you'd posted.
Exactly right. I haven't really figured out what exactly my theory is yet but I thought I'd share since it's been gnawing at my engineer gene.
I suspect... and I go here with great trepidation... that the distribution of one's body weight (heavy torso) in the hammock changes the free body diagrams a bit. That is, it's not necessarily 1/2W acting on each tree. Whether this answers my first question, I'm not sure.
Before you blast me completely, consider this: the tension in the RL changes considerably from when you're sitting in the hammock (with feet off the ground) to lying in it. Why?
Like I said, I haven't really fleshed this thought out fully yet, so please be kind.
(I've also considered that because it's an asym hammock there could be a third dimension to consider... but I just can't bring myself to start drawing the FBDs after work hours!)