Question

What is the principle of lever?

Answer 1

1. A lever is a simple machine that changes the magnitude and direction of the force applied to move an object. It minimizes the effort required to lift the object.
2. In other words, a lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. A lever is a rigid body capable of rotating on a point in itself.
3. There are three types of lever first-class lever, second-class lever, and third-class lever

Principle of the Lever.

It has been found by experiment that two equal forces acting in opposite directions, i.e., clockwise and counterclockwise, and applied to a uniform level at equal distances from the fulcrum counteract each other and establish a state of equilibrium, or balance, in the lever.