Question

How can we increase the mechanical advantage of a Lever

Answer 1

The advantage of levers, which relates effort and load (or input and output force), depends on how far away each are from the fulcrum. The mechanical advantage of a lever is increased when either the effort is moved further away from the fulcrum or the load is shifted closer to the fulcrum, or both.

Answer 2

We can mechanical  advantages of lever by increase in the mass and height for the body