For a block-and-tackle system with 2 segments, what is the ideal mechanical advantage?

In a block-and-tackle system, the ideal mechanical advantage (IMA) is defined by the number of rope segments supporting the load. Each segment effectively distributes the weight of the load, allowing the user to lift it with less input force.

In this case, since there are 2 segments in the block-and-tackle arrangement, the ideal mechanical advantage is 2. This means that the input force required to lift the load is halved compared to lifting the load directly without assistance. Thus, if you apply a force to pull down on one segment of the rope, the load is lifted twice as efficiently because both segments share the weight.

Therefore, with 2 segments in the system, the ideal mechanical advantage being 2 indicates that for every unit of force you apply, you can effectively lift a load weighing twice as much.