For the following simple see-saw calculate

The load that could be lifted

The load that could be lifted on a see-saw is dependent on the ratio of the distances from the fulcrum to the load and the effort (force applied). This is known as the principle of moments.

Let's assume we have a see-saw with the following dimensions:
Distance from fulcrum to load = 1 meter
Distance from fulcrum to effort = 0.5 meters

Let's assume the effort applied is 10 Newtons.

First, we can calculate the weight of the load that can be lifted by multiplying the effort by the ratio of the distances:
Load = (Effort x Distance from fulcrum to effort) / Distance from fulcrum to load
Load = (10 N x 0.5 m) / 1 m
Load = 5 N

Therefore, the load that could be lifted with an effort of 10 Newtons on this see-saw would be 5 Newtons.