- 920
- 257
No involvments
Last edited:
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
A bump is for 24 hours of inactivity. Not 6.Bump
Feld and McNair found that beginning students can throw a karate chop at about 20 feet per second, just enough to break a one-inch board. But a black belt like McNair could chop at 46 feet per second. Hitting a piece of wood at that speed, a 11/2-pound hand can deliver a wallop of up to 2,800 newtons (one newton is roughly equal to the force exerted by the weight of an apple). Splitting a typical concrete slab 11/2 inches thick actually takes less, about 1,900 newtons. Of course, brute strength is not the only requirement for breaking concrete blocks — the nature of the chop is also important. Karate students must learn that for a strike to have maximum momentum, it must have a follow-through; golf and tennis players follow through with their swings for the same reason.
BothWhich calc your talking about for that?
So what would the level be if were to agree with that point against the calcs?Both