Which type of lever allows the load to be between the input force and the fulcrum?

In a second-class lever, the load is positioned between the input force and the fulcrum. This configuration allows for a mechanical advantage, as a smaller input force can move a larger load due to the positioning of the fulcrum.

For example, when using a wheelbarrow, the wheel serves as the fulcrum, the load is placed in the bucket of the wheelbarrow, and the person lifts the handles to apply the input force. The setup enables the user to lift heavy loads with less effort compared to lifting the load directly.

This distinction is critical; while first-class levers also involve the fulcrum and input force, in that case, they are positioned on opposite sides of the load, and third-class levers have the input force between the load and the fulcrum, which does not provide the same mechanical advantage as second-class levers do.