Describe each class of lever and explain the characteristics of each.

The lever is defined as the movable object that turns on a stationary fulcrum. The lever moves when the load is put on the beam.

There are three types of lever:

The first class of lever includes the type of lever when the fulcrum is placed in the middle of the effort and load. The fulcrum can change the direction of the input force and is used to increase the force.

The second class of lever includes the type of lever when the load is present in the middle of the fulcrum and effort. The fulcrum is now unable to change the direction of the input force. The output force will be greater than the input force.

Thrid class of lever includes the type of lever, in which effort is present in between the fulcrum and load. The load cannot change the direction of the input force. The input force is greater than the output force.

Therefore, the three types of the lever are first class, second, and third class.

To know more about the lever, refer to the following link:

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