Answer:

     (3) CLASS 1 / FIRST CLASS

(4) CLASS 3 / THIRD CLASS

(5) CLASS 2 / SECOND CLASS

Explanation:

There are three classes levers, according to the position of the fulcrum.

Class 1 has the fulcrum placed between the effort and load.

Class 2 has the load between the effort and the fulcrum.

Class 3 has the effort between the load and the fulcrum.

Seesaw is in the first class lever, the fulcrum is located between the effort and the resistance, the seesaw is a good example of a lever, and it happens to be a first class lever. The amount of weight and the distance from the fulcrum can be varied to suit the need.

Fishing rod is a third-class lever, with the fulcrum on one end of the rod, the input force close to the fulcrum, and the output force at the other end of the rod.

Nutcracker is a second-class lever. The fulcrum in the nutcracker is at one end, where the two metal rods of the device are hinged together. The effort force is applied at the opposite ends of the rods, and the resistance force, the nut to be cracked open, lies in the middle.

#CARRY ON LEARNING                                                  

Explanation:

I don't know if this is correct