1.Which class lever will never give you a mechanical advantage?
2.Which class lever will always give you a mechanical advantage?
3.List the 3 things that are required to do work.
Please help
My answer:
1. Class 1?
2. Class 2?
3. I don't know.
1. To determine which class lever will never give you a mechanical advantage, it's important to understand the different classes of levers. There are three classes of levers: Class 1, Class 2, and Class 3.
- Class 1 lever: In this lever, the fulcrum is located between the effort force and the resistance force. This class of lever can provide both a mechanical advantage (MA) and mechanical disadvantage (MD), depending on the relative positions of the forces. So, a Class 1 lever can potentially provide a mechanical advantage.
- Class 2 lever: In this lever, the resistance force is located between the fulcrum and the effort force. The effort force is always further away from the fulcrum than the resistance force in a Class 2 lever. This class of lever will always give you a mechanical advantage because the effort arm is longer than the resistance arm.
- Class 3 lever: In this lever, the effort force is the force applied between the fulcrum and the resistance force. The resistance force is always further away from the fulcrum than the effort force in a Class 3 lever. This class of lever can also provide a mechanical advantage, but it typically provides a mechanical disadvantage because the effort arm is shorter than the resistance arm.
Based on this information, the answer to the first question, "Which class lever will never give you a mechanical advantage?" would be Class 3 lever. A Class 3 lever is more commonly associated with mechanical disadvantage rather than mechanical advantage.
2. The answer to the question, "Which class lever will always give you a mechanical advantage?" is Class 2 lever. A Class 2 lever always provides a mechanical advantage because the effort arm is longer than the resistance arm.
3. To do work, three things are required:
- Force: Work is the application of force over a distance. Without force, work cannot be done. Force is a push or a pull applied to an object.
- Displacement: In order for work to be done, the object on which the force is applied must undergo displacement, which means it must be moved or displaced from its initial position to a final position.
- Angle: The force and displacement must have a certain angle between them. The angle between the force and displacement vectors is called the angle of inclination or angle of application. If the force applied is not in the same direction as the displacement, then work may be reduced.
These three factors (force, displacement, and angle) are essential for work to be done on an object.
I hope this helps! Let me know if you have any further questions.