Question

What is a lever ? On what basis,lever are classified

Answer 1

Answer:

Levers are classified by the relative positions of the fulcrum, effort and resistance (or load). It is common to call the input force the effort and the output force the load or the resistance. ... It is also called force multiplier lever.

Answer 2

A lever (/ˈliːvər/ or US: /ˈlɛvər/) is a simple 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 on itself. ... A lever amplifies an input force to provide a greater output force, which is said to provide leverage.