Speed Vs Power

[windwalker099]

There is the concept of "impulse" which is the momentum transfer into the target, it is the integral of force over "contact time". Unless your body is begind, you might get a weak impulse but with high peak force.

So we have two parameters.
- PEAK force
- Total energytransfer (or impulse)
View attachment 32634

Waves, also another way of transferring momentum..

@PhotonGuy

It works like this, the faster your hand or foot goes the harder it will hit, that's quite obvious. Just like how in Baseball a fastball pitch is going to hit the catcher's glove harder than a curve ball. Why? Because the fastball is faster than the curveball, therefore it hits harder when it lands in the catcher's glove. By the same concept the faster your punch or kick goes the harder it will hit when it hits your opponent, so speed is power.

Feel it depends on the method used for momentum transfer, how the momentum is transferred,
and what is interacting during the transfer.

This characteristic of a wave as an energy transport phenomenon distinguishes waves from other types of phenomenon.

"This characteristic of a wave as an energy transport phenomenon distinguishes waves from other types of phenomenon. Consider a common phenomenon observed at a softball game - the collision of a bat with a ball. A batter is able to transport energy from her to the softball by means of a bat.

The batter applies a force to the bat, thus imparting energy to the bat in the form of kinetic energy. The bat then carries this energy to the softball and transports the energy to the softball upon collision. In this example, a bat is used to transport energy from the player to the softball."

 

[Fungus]

Waves, also another way of transferring momentum..

Yes sure. but the picture with the impulse as force over time during the contact time to the target would be a universally valid physical picture.

It is independent of how the momentum of the limb is generated, it is just the simple physics picture.

I associate waves as the wave motion that exists in kinetic linking, and that can if done right (in phase with timing) increase both peak force and total impulse. In the "end of the wave", at the target there is a similar impulse no matter how your body and limbs has generated it. But they way it's done will influence the shape of the impulse. So there is indeed an impulse transfer also in wave motion.

 

[windwalker099]

. But they way it's done will influence the shape of the impulse. So there is indeed an impulse transfer also in wave motion.

The issue wasn't whether a wave can transfer momentum as an impulse. Rather, the focus was on showing that momentum can be transferred in different ways. Depending on the method used, it can influence how one perceives the process and the approach being applied.



The OP

My primary art is Karate and therefore Im posting this in the Karate folder but this same concept can be applied to any striking art. So anyway, I've heard talk about people who have tremendous speed but not much power which I find a bit confusing. If you've got speed you're going to have power. Why? Because speed is power. The more speed you've got the more power you've got.

His example

It works like this, the faster your hand or foot goes the harder it will hit, that's quite obvious. Just like how in Baseball a fastball pitch is going to hit the catcher's glove harder than a curve ball. Why? Because the fastball is faster than the curveball, therefore it hits harder when it lands in the catcher's glove. By the same concept the faster your punch or kick goes the harder it will hit when it hits your opponent, so speed is power.

He conflates 'speed' with the transfer of momentum in the form of kinetic energy.