A seesaw is an example of a first class lever First class levers (class 1) place the fulcrum between the effort and the load. An example would be a seesaw, which places the fulcrum in the centre ...

Ahead of the trip, she had bragged to her friend about "how great" the service would be in first class compared to economy. While Michelle had flown first class before, this was her pal's first ...