Is someone able to give me a better explanation? Have spent some time on this, and it still does not make sense to me. I really want to understand this fully. My original question was also meant to clarify which approach was correct. I have gotten no further in this. At all.
I honestly don't see how that makes sense. As the distance from L to X increases, the torque increases. The force stays the same. Otherwise I should be spontaneously gaining mass.
So, suppose I want to describe my foot, the ancle joint and my achilles tendon as a lever. I look at my foot as if it was standing on a step of a stair with my heel protruding out into the air, or if i was standing on solid ground, lifting my heels just a millimeter from the ground. Like this...