What is a lever? State the principle of lever.
Answers
Answer:
Explanation:
The lever is one of the most basic forms of a machine. They help us in lifting loads with lesser effort. It consists of a beam or rigid rod pivoted at a fixed hinge or fulcrum.
Load : The object which we are lifting.
Fulcrum : Point at which the lever is pivoted.
Effort : The force applied to make the object move.
Principle of the Lever. It has been practically found that when two equal forces acting in opposite directions, i.e., clockwise and counterclockwise, are applied to a uniform lever at equal distances from the fulcrum, they counteract each other and establish a state of equilibrium in the lever
Answer: lever is the simplest machine which is a long bar on plank that can rotate about a fixed point i.e. fulcrum.
working principle of lever are:
1: load
2: load distance
3: effort
4: effort distance