Question

how to change in our effort arm affects the effort required to lift the object?​

Answer 1

Answer:

In the same way the shorter the length of the effort,The greater is the force required to lift and the longer the length of the effort lesser is the force required. 1=length of the part of the rod from fulcrum to the end where forces is to be applied

Answer 2

Answer:

using The all three types of Lever I 2 3 Can Change position of Effort Load and fulcrum