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Jiujitsu Physics

 

JiuJitsu is a martial art that focuses on grappling with particular emphasis on ground fighting. Torque and physics would be used in JiuJitsu because shows the concepts of levers and forces.

Torque is a twisting force that tends to cause rotation, force is any interaction that changes the motion of an object, and fulcrum is the point on which a lever rests or is supported and on which it pivots.

Why does Jiu Jitsu follow this progression?

  1. Get your opponents to the ground
  2. Get past your opponent’s legs (or attack their legs)
  3. Control their hips and shoulders (or their legs)
  4. Add a submission

Jiu Jitsu uses this  progression since it is harder for your opponent to attack you from the ground and having you control the fight. Attacking their legs first are essential because they are used as the lever points, controlling their center of gravity. After having their center of gravity, you can use different kinds of submissions to tap them out.

Why does Brazilian Jiu Jitsu want control?

Brazilian Jiu Jitsu wants control because control means everything and when you have control of someone’s body that means you can push their body to a limit where they’re forced to tap out (submission).

2 diffrent types of submission:

Armericana

 

The Americana is when the fighter’s hips are used as the fulcrum. The opponent arms are used as the applied forces. And the fighter’s head holds up the lever. Giving the equation of  Torque = F*d

 

 

Armbar

 

The Armbar  is when the fulcrum is the opponent’s shoulders. Then the applied force is made by using the elbow, holding the fighter in place. Having the equation of Torque = F*d

 

 

 

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