What is the difference between First type of lever arm and 2nd lever arm ?
I found the explanation in the video and slides on first lever arm of the work of the convex muscles but 2nd levelr arm connected to the vicious circle please explain, thank you, Andrea
There are three different classes of lever.
A first-class lever has the fulcrum between the load and the effort.
A second-class lever has the load between the effort and the fulcrum.
A third-class lever has the effort between the load and the fulcrum.