Your question is a bit too broad, because it depends on what bone it is. That's not much of an answer, but if it helps any, I know that if you bend your elbow the way opposite that it is suppose to bend, it only takes 5 pounds of pressure to break it.
In medical terms, a break of a weakend bone is usually due to osteoporosis. A person with osteoporosis suffers from weakend bones which can very easily fracture or break with very little pressure.
75 pounds of succinct concentrated opposing downward pressure will break almost any human bone
You can't break it actually because it is not bone.
usually a lot of pressure but it depends on the bone. Example: It takes 12-16 pounds of pressure to break a knee.
40 pounds
This is the spongy bone made of rings of collagen. This allows the bones to slightly flex when under pressure, but break to relieve the pressure if needed.
"depends on thee bone. Copperhead_51 " That's wrong. As long as there would be no gas in something, the thing cannot break under any kind of pressure (unless you have pressure equivalent to a sun or blackhole). At some pressure, chemicals can start to break down, but your bones would still not break.
Well the next time you get sick or break a bone ask that question.
it is a little bit easier to break a bone.i am not really that sure but that's what is think.
fibula tibula
Osteoclasts break down extra bone over time. If the bone is not functional, or if minerals are needed in the bloodstream, osteoclasts complete that breakdown.
168 newton this is the answer you expect but its wrong, this would be a trick question cause the angle you bring the neck to will once you hit somewhere around 45 degrees your neck become butter. its 4 pounds of pressure at the least.