Which type of lever is designed to have the load between the fulcrum and the effort?

In a second class lever, the load is positioned between the fulcrum and the applied effort. This configuration allows the effort to move through a longer distance compared to the load, which results in a mechanical advantage. An example of this type of lever is a wheelbarrow, where the wheel acts as the fulcrum, the load is placed in the middle, and the effort is applied at the handles.

In contrast, a first class lever has the fulcrum positioned between the load and the effort; examples include a seesaw. A third class lever has the effort located between the fulcrum and the load, like in a pair of tweezers. The term "simple lever" is a general description and does not specifically categorize the lever types in the manner intended by the question. Therefore, recognizing the role of the fulcrum, load, and effort is essential in identifying that the second class lever is uniquely characterized by having the load in between the other two components.