Brazilian JiuJitsu is a martial art using a method or technique of closely controlling your opponents without using weapons. Torque and physics would be used in Brazilian JiuJitsu because it can give an understanding of concepts such as levers and force. Torque is used as a measure of how much a force acting on an object that causes that object to rotate, 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 follows this progression since it is harder for the opponents to attack them from the ground this means that the fighter is on top of the opponents, controlling the fight. Attacking their legs comes first because it is used as the lever points, controlling their center of gravity. After holding their center of gravity, the submission is used by using holds, locks, and chokes to win the match.

Why does Brazilian Jiu Jitsu want control?

Brazilian Jiu Jitsu wants control if is easier for the fighter to use their opponent’s arms, legs, and centre of mass. It gives the fighter an advantage on how to use their submissions.

Determine the lever, fulcrum, force (perpendicular), and force:

Armbar:

When using Armbar, the opponent’s (black uniform) shoulders are used as the fulcrum. The applied force is made by using the elbow, holding the fighter (blue uniform) in place. -> Torque = F*d

Americana:

When using Americana, the fighter’s (blue uniform) hips are used as the fulcrum. The applied forces are the arms of the opponents’ (white uniform), while the fighter’s head holds up the lever. -> Torque = F*d