RE: I am rich now, friends.
April 11, 2012 at 8:05 pm
(This post was last modified: April 11, 2012 at 8:07 pm by NoMoreFaith.)
(April 11, 2012 at 6:02 pm)JohnDG Wrote: Go outside and punch somebody in the face. You will get an equal (punch) and opposite (person) reaction.
Well.. how hard did I punch them?
Well, if it takes 9 pounds of force to break a bone, equivalent to about 40 Newtons.
So if an average arm is 3.16kg roughly, then we can calculate;
So given A = F/M, 40/3.16 = 12.65 (12.65 Newtons/kilograms = 12.65 (kilograms meters/second2)/kilograms = 12.65 meters/second2)
If you can manage 12.65 meters per second from your fist (or almost 30 miles per hour) I can almost guarantee there will be no reaction from the person I punch as we break a bone in their face.
If I punch correctly and introduce my own bodyweight behind the punch, combined with inertia of the swing, I might even be able to get this down quite low.
So if you manage to get the math right, you can certainly ensure that you will not get an equal (punch) and opposite (person) reaction as they cry on the floor with a broken face (despite the likely broken hand as well of course).
Just sayin', mathematical truths applies to anecdotes too.
(BTW Maths and Physics majors.. please don't cringe too much..
)
Self-authenticating private evidence is useless, because it is indistinguishable from the illusion of it. ― Kel, Kelosophy Blog
If you’re going to watch tele, you should watch Scooby Doo. That show was so cool because every time there’s a church with a ghoul, or a ghost in a school. They looked beneath the mask and what was inside?
The f**king janitor or the dude who runs the waterslide. Throughout history every mystery. Ever solved has turned out to be. Not Magic. ― Tim Minchin, Storm
If you’re going to watch tele, you should watch Scooby Doo. That show was so cool because every time there’s a church with a ghoul, or a ghost in a school. They looked beneath the mask and what was inside?
The f**king janitor or the dude who runs the waterslide. Throughout history every mystery. Ever solved has turned out to be. Not Magic. ― Tim Minchin, Storm
