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  1. Equipoise is offline
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    Certified Fitness Trainer

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    Posted On:
    6/20/2005 12:37pm

    supporting member
     Style: Chemical Assistance

    --
    Hell yeah! Hell no!
    Man, this is like giving groups of children an assortment of firearms and marching them on to the battlefield.
  2. j416to is offline

    Middleweight

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    Posted On:
    6/20/2005 12:43pm

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     Style: Muay Thai, Kenjutsu

    --
    Hell yeah! Hell no!
    Okay, to prevent this from degenerating into all the rest of the bullshit physics threads, I want to see some credentials.

    1) How many physics classes have you taken at the University level.
    2) How many physics classes have you taught at the University level.

    otherwise its just a bunch of ninjas teaching Muay Thai and BJJ techniques.
  3. Ronin is offline

    Senior Member

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    Posted On:
    6/20/2005 12:46pm

    Join us... or die
     Style: Shi Ja Quan

    --
    Hell yeah! Hell no!
    Quote Originally Posted by j416to

    otherwise its just a bunch of ninjas teaching Muay Thai and BJJ techniques.
    You say that as if it was a bad thing.
  4. Equipoise is offline
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    Certified Fitness Trainer

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    Posted On:
    6/20/2005 12:49pm

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     Style: Chemical Assistance

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    Hell yeah! Hell no!
    If I get into this discussion (hopefully not an inevitability)

    1.) 3 classes. Intro to Physics, Physics concepts and Theoretical Physics.
    2.) 0 classes taught.
  5. MaverickZ is offline

    Heavyweight

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    Posted On:
    6/20/2005 12:51pm

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     Style: white boy jiujitsu

    --
    Hell yeah! Hell no!
    Quote Originally Posted by j416to
    Okay, to prevent this from degenerating into all the rest of the bullshit physics threads, I want to see some credentials.

    1) How many physics classes have you taken at the University level.
    2) How many physics classes have you taught at the University level.

    otherwise its just a bunch of ninjas teaching Muay Thai and BJJ techniques.
    can you define "physics" please?
  6. Sh0t is offline
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    Martial and Sexual Artist

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    Posted On:
    6/20/2005 1:02pm

    supporting member
     Style: standup to ground

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    Hell yeah! Hell no!
    Is the premise here that physics does not apply to Martial Arts?
  7. Nid is offline

    Light Heavyweight

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    Posted On:
    6/20/2005 1:05pm

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     Style: Brazilian Jiu-Jitsu

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    Hell yeah! Hell no!
    Physical science, sophomore year of high school.
  8. IzzyDaHedgehog is offline

    Didn't so much Fall as Saunter Vaguely Downwards

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    Posted On:
    6/20/2005 1:11pm


     Style: Ex-TKD, BJJ, Muay Thai

    --
    Hell yeah! Hell no!
    AP level physics, and a Modern Physics course that did some things with special relativity, quantum mechanics, particle stuff, and touched on string theory. I guess they were university level, but in high school.

    Is the premise here that physics does not apply to Martial Arts?
    No, the premise is that simply applying "F=MA" to the power of a punch is simplistic. You can't say that just because someone is bigger and stronger that they'll automatically punch harder. There's a lot of anatomy (slow twitch and fast twitch muscle) determining what the speed will be, body mechanics, etc.
    sudo make me a sandwich!
  9. Beatdown Richie is online now
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    game dog

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    Posted On:
    6/20/2005 1:16pm

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     Style: BJJ

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    Hell yeah! Hell no!
    Okay, I've taken more physics classes than I care to count, and I admit that I don't have a clue how the body mechanics play out in detail.

    But I'm pretty sure of the following: F=mA cannot be applied in a straightforward fashion, given that the body is a rather complex system of coupled muscles, bones, joints, and tendons. How much impact a punch has depends not only on its speed, but also on how much of the body weight is behind it and how the body is connected to the ground. That much should be obvious to anyone who's ever hit a heavy bag.

    Also, it is not obvious what determines the effectiveness of a punch. Clearly, something like a shoulder check transfers more energy and momentum than a hook; presumably, a finger poke will generate more pressure (force per area) than a smack with a boxing glove. This tells us that the KTFO factor lies somewhere else, probably in a rapid acceleration of the skull from particular angles.

    In other words, don't worry about physics, just hit the ************ hard.
    There are no wrong threats, only wrong answers. (Strategy game truism)
  10. Ronin is offline

    Senior Member

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    Posted On:
    6/20/2005 1:25pm

    Join us... or die
     Style: Shi Ja Quan

    --
    Hell yeah! Hell no!
    F=MA is just that: Force = Mass X Acceleration.
    It means no more or no less.
    It is ONE of MANY variables and is no more or no less important than the rest of those variables:
    Kinetic energy transfered to/from target
    Stable base
    Ridgidity of striking limb
    Compression
    Impulse
    Weight transfer
    tensing/relaxing of muscles
    Surface area of impact
    Surface area of striking weapon
    Angle
    Etc, Etc , ETC !!!!!!!!!!!!!!!!!!!!
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