Which type of lever is exemplified by a wheelbarrow?

A wheelbarrow is a practical example of a Class II lever because it allows the user to apply force more effectively while lifting a load. In a Class II lever, the load is positioned between the effort and the fulcrum. In the case of a wheelbarrow, the wheel serves as the fulcrum positioned at one end. The load is placed in the bucket between the wheel and where the person lifts or pushes down on the handles, which is where the effort is applied. This configuration allows for an increased mechanical advantage, making it easier to lift heavy loads with less effort than would be required without the lever system.

Class II levers are characterized by this arrangement where the effort moves a greater distance than the load, which is one of the key reasons why wheelbarrows are beneficial for transporting heavy materials.