How much would a person weigh who would be unable to jump?
October 3, 2012 4:38 PM Subscribe
How much would a human have to weigh to be unable to jump (lift both feet off the floor at once at least a couple of inches)?
posted by crabintheocean to Science & Nature (12 answers total) 2 users marked this as a favorite
Can folks with a better understanding of math and physics help me figure this out?
So I understand that volume and mass increase much faster than the dimensions of an animal as it grows larger and this leads to small animals being relatively stronger than larger ones (like how an ant can lift many times its body weight). That's the same thing as smaller animals surviving greater falls, right? And the same thing as them being able to jump proportinally higher?
I understand that jumping power also depends on body mechanics and that some individuals are much more athletically able than others, but I believe that really big animals can't jump at all. So roughly (allowing for varying strength) what is the point for a human where they would not be able to jump at all? Jump here is defined as propelling both feet off the ground together from standing.
(this has been bugging my wife and I for a while, scientific curiosity, no nefarious fatphobic purpose)