Here's a more detailed explanation of how a third-class lever works:
* The input force is applied to the end of the lever that is closest to the fulcrum.
* The output force is applied to the end of the lever that is furthest from the fulcrum.
* The fulcrum is the point around which the lever pivots.
* The distance between the input force and the fulcrum is called the input arm.
* The distance between the output force and the fulcrum is called the output arm.
* The mechanical advantage of a lever is the ratio of the output force to the input force.
* The mechanical advantage of a third-class lever is always greater than 1, which means that the output force is greater than the input force.
* However, the distance through which the output force moves is less than the distance through which the input force moves.
Third-class levers are often used when a large output force is needed, but the input force is limited. For example, a wheelbarrow is a third-class lever that allows a person to move a heavy load with a relatively small amount of force. The input force is applied to the handles of the wheelbarrow, and the output force is applied to the load. The fulcrum is the wheel of the wheelbarrow. The mechanical advantage of a wheelbarrow is greater than 1, which means that the person can move a load that is heavier than they could lift on their own.
Here are some other examples of third-class levers:
* Tweezers
* Fishing poles
* Pliers
* Scissors
* Bottle openers
* Can openers