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yes the knife is a lever but i am not sure whether it is first class or third class lever.
A standard office stapler is a third class lever. A third class lever is characterized by having a fulcrum on one end and the output on the opposite end of the machine. Effort is applied between the fulcrum and the output.
Nail clippers work by cutting your nails between two very sharp metal edges. These edges come together and slice through your nail.
You are using a lever when you pull a nail with a hammer or bar.
Seesaw - The seesaw works by putting the fulcrum in the middle, and the two people on each end work as the force and the effort. This would be called a first class lever. Wheelbarrow: When the handles are lifted, the wheelbarrow is the fulcrum. This would be second class lever. Crow Bar:The crow bar is a first class lever, It's helps moves things around, like if you had a big rock to move out the way, you can use a crow bar, and you will need a smaller rock to be the fulcrum. Sport: Most sports use equipments like tennis racquets, softball bats, and cricket bats to make objects move faster and to hit objects like a ball further away. This is a third class lever
A nail clipper is a class two lever coupled to a class three lever.
A nail clipper is a class two lever coupled to a class three lever.
A nail clipper is a class two lever coupled to a class three lever.
A wedge and class 3 lever
the handle is the effort. The pincher which takes off the nail is the load. Then the pivot comes last.
second class
first class The point about which a lever rotates is called the fulcrum
It uses both third class and second class level., because, the part which is cutting the nail, is the third class. But the part where you're putting the finger and pushing, that becomes second class lever.
To cut your toenails and fingernails. To clip and file your nails.
The main cutter or the clip is third class and the handle is of second class.
The lever class of a hammer depends upon its use. If the hammer is used as a claw to remove a nail, it is a first class lever. When the hammer is used to strike a nail, it is a third class lever. There are three classes of levers. The difference between the classes lies in the position of the load, the effort and the fulcrum. When the fulcrum is between the load and effort, the object is a first class lever. If the load is between the fulcrum and effort, the object is a second class lever. A third class lever places the effort between the load and the fulcrum.
Description of a Standard Nail Clipper