Uniform Force

On a circle, every point is the same. That should have given me a clue about how force should be like. My teacher was telling us the other day that force should be the same along my arm, ie. the force at my wrist should be the same as the force at my elbow. One cannot be heavier (or lighter) than the other. Also, when pushing an opponent using two arms, both arms must push with the same force.

In the first case, if a part of your arm is lighter than another, it is an opening for your opponent to move in.

In the latter, if the force from both arms are the same, there is no opening for the opponent to escape towards.