Bao wrote:origami_itto wrote:Bao wrote:No, it’s just physics. Speed is much more important than mass when it comes to power generation.
Kinetic Energy = 1/2 x Mass x Velocity^2
From a physics perspective that statement
1) Makes absolutely no no sense. "Power generation" is not a thing. Power is a measurement of work over time.
2) Is patently incorrect. "Force" is the product of "speed" and mass, so increasing either will increase the amount of energy carried/transferred by a force. You're basically saying that in the equation 6 = 2 x 3 that the 2 is more important than the 3. Like... how?
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Kinetic Energy = 1/2 x Mass x Velocity^2
Again, ^2 means that velocity is squared, which means that as velocity increases, it has a much greater impact on the kinetic energy of an object than mass does. This means that if you triple or quadruple the speed of a moving object, the power of a collision will have a much greater effect than if you triple or quadruple the mass.
Kinetic energy means movement and the equation is about movement. Comparing with an equation as 6 = 2 x 3 is just silly and means that you for some reason can't understand, don't want to understand, or that you are trolling.
In the equation 6 = 2 x 3, 2 is NOT more important than the 3. But if change the equation from 2 x 3 to 4 x 12, then the 3 has changed more than the 2. 4 is the double amount of 2. 12 is 4 times the amount of 3. 4 x 12 is 48. So changing 3 to 12 increases the total sum more than changing 2 to 4.
I sincerely don't understand why you have a problem with a simple equation that proves that the increase of velocity will have a more impact on increasing strength than the increase of mass. Maybe you complicate things too much.From the perspective of a human body, muscles only fire at the rate they fire. There is a hard limit on how fast muscles can make you move. Once you reach that, the only ways to increase energy output are to recruit more mass or increase mechanical advantage.
Well, there's a limit to how much mass you can put on your body.
But most people can increase the speed of their movements better and faster than they can put on weight or increase the size of their muscles.Bhassler wrote:Re: Physics
Most people look at the wrong end of the equation. The relevant acceleration (whether in F=MA or KE=1/2MV^2) is the negative acceleration on impact. The more solid and efficient one's structure is at the moment of impact, the more energy will be transferred and, hence, more damage done. "Leaking" power is a much bigger issue than an inability to generate power.
Exactly!
That is why I said that I rather speak about supporting a striking fist with mass, than moving mass to strike with.
The acceleration/speed/velocity is the first thing that is important.
Your structure/balance/support when your fist lands on the target.
It's harder to train to increase mass than to practice speed. Regardless what method you prefer, the body must give the fist a firm support. Even if you walk/run or fall into the punch, angles and timing must be correct to give the punch maximum support.
As i said in my edit. Your muscles only move as fast as they can move. I was originally responding to the force equation because I wasn't paying full attention when I responded.
When your muscles are maxed, the only ways to increase power are to recruit more mass or increase mechanical advantage.
Connecting the body mass into "one qi" to maximize the amount of mass adding to the force of the movement is the point of a lot of this training.
There is a greater difference in the mass recruited between a beginner and someone with training than there is in speed.
You're going to start pretty close to your Max speed, using almost no mass with no mechanical advantage. Your speed, the speed of your muscles, is pretty much set by genetics.
So if we're looking at the equation, there is much more room for improvement in mass.
Mechanical advantage wise, the trebuchet is instructive. The slow drop of the large mass becomes a high power spiral by the time it gets to the load, and the result is a much more powerful siege weapon than a catapult.
I can hit my heavy bag slow and without moving my hand very far and it moves a good bit, or not if I'm not properly connected on impact.
Hitting something with a stick, you hit a whole lot harder when you're wearing 50lbs of armor, and that's not because you're faster.
So then that other concern of leakage, you're moving fast, got mass, preserving and channeling as much energy as possible into our target. Much more a matter of finesse, control, and relaxation, IMHO.
But then as mentioned, its not about the effort your muscles put in, its about the work that the system performs on something else.
Also the mass recruited isn't about a SOLID structure, we can get the same power from a FLEXIBLE structure, and it isn't always about IMPACT. A bow doesn't fire an arrow by hitting it.