Speed Vs Power

[Wing Woo Gar]

But it was not the equation of force, it was the equation of power, and it is surely correct.

Power is energy/time, and force*distance = energy, so power = energy/time = force * distance/time = force * velocity

Applying a certain FORCE at a certain speed in a given direction defiens the power output (energy transfer per unit time).

But this velocity is not the same as the velocity of the fist before impact, it is the speed during impact, througout the contacttime - this is where energy is transferred. And if there is little mass behind the first, it will stop quickly and "energy transfer" is low even if the transient peak force may be high.

Very well said, I stand corrected.

 

[Same Trick]

Where:
W+t+F = What the F**k = what I think when I see formulas re: MA

My understanding is:

Where:
IF = Impact Force
fc = facial contact

Then IF + fc = n$ @ the MD

Hey, formulas are pretty fun after all.

I knew someone that insisted to call forms(kata/taolu) as formulas…. I too think formulas are fun

 

[HighKick]

If you punch with just your arm your hand will be moving at the speed of your arm, if you put your hips into it your hand will be moving with the speed of your arm plus the speed of your hips, for a more in-depth explanation see post #50.

No, but this should create more Force, assuming the technique it correct.

 

[PhotonGuy]

So I want to reference the videos that Kung Fu Wang provided in post #4, with the fellow in the first video, when he throws the strikes his hands are moving faster than the hands of the fellow in the last video when he throws his strikes. The fellow in the last video is getting the strikes off faster but the strikes themselves aren't faster.

Again, it would be like the analogy of a 9mm Uzi vs a .270 bolt action rifle, with the 9mm Uzi you're going to get off many more shots per minute than you will with the .270 since the Uzi is a full automatic. With the .270 however, the bullets will be going faster. A 90 grain bullet of .270 caliber has a muzzle velocity of 3,603 fps as opposed to the 9mm which at a weight of 60 grains has a muzzle velocity of 2,010 fps.

So the guy in the first video would be like the .270 bolt action rifle and the guy in the last video would be like the 9mm Uzi full automatic.