describe some advantages and disadvantages of each of the three types of lever
Answers
What is a First-Class Lever?
A first-class lever is a simple machine that lifts a load across a pivot point called a fulcrum. It differs from all other classes of levers because the fulcrum exists between the load and the force that lifts it. A teeter-totter is an excellent example of a first-class lever because it demonstrates how the lever works and is an iconic image from childhood. First-class levers exist in many common locations, such singly in engine pistons or in pairs in scissors and pliers.
Conceptual Advantage
First-class levers are the simplest levers to conceptualize because of the simplicity of the design and of the levering action that allows them to work. Children worldwide are familiar with the teeter totter and have unintentionally created first-class levers by placing a pencil under a ruler. As we grow into careers, the dolly or hand-cart required by many jobs uses the first-class lever as well. Through simple exposure, most people are able to visualize and understand the first-class lever more easily than the other types.
Answer:
its the ad and dis
Explanation:
plz say
