Question

Q 18.20 The force applied on a
lever -​

Answer 1

Answer:

A lever is a simple machine that consists of a rigid bar supported at one point, known as the fulcrum. A force called the effort force is applied at one point on the lever in order to move an object, known as the resistance force, located at some other point on the lever

Answer 2

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Input force (also called the effort) - the force applied to the lever. • Output force (also called the load) - the force applied by the lever to move the load. There are three types of levers: first class, second class and third class.

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