What a load of rubbish, if that were true then tractors, trucks or any other heavy machinery wouldn't exist because people could train in the right technique to do the work. Speed, precision, and technique certainly factor in but a strong person can innately hit harder than a weak person with no training and lots of stamina. I'd love to see a Kenyan marathon runner with a huge Stamina go up against a boxer like Mike Tyson, I know who I'd put money on. Even if they were just hitting their own punching bag.
You demonstrate a complete lack of knowledge here. Tyson hit like a truck because he had excellent technique and blistering speed in the pocket. When he was working in close, he had laser-guided hands that came flying at your chin faster than the speed of sound. And I can also guarantee you that Mike Tyson hits harder than Bob Sapp, the 400-pound mountain of steroidy goodness from the video in my first post.
How so? I've already shown that Strength is the force, the "oomph". The force is the "hit harder" part that you seem to be totally missing. It's a branch of demonstratable science called Physics.
No, you simply said it. And it is untrue. Force equals mass times acceleration. The "oomph" (I am so tired of that word, so in your inevitable rebuttal, please do us
both a favor and think of a different one) is the speed. While the SIZE of a person's arm may contribute, speed is the much more important factor. Strength, defined in terms of how much you can benchpress, has absolutely nothing to do with it.
With your logic a 45 kilogram child that has trained for 5 years to hit a bag can hit harder than a man that is 120 kilos and has the strength to lift 180kilos but has only trained for 2 years.
Again, no, what I'm saying is that this man -
http://www.mmaconvert.com/wp-content/uploads/2008/07/cain_velasquez.thumbnail.jpg
- demonstrably hits much, much harder than this man:
http://www.onlineworldofwrestling.com/pictures/b/brocklesnar/25.jpg