What is the mechanical advantage of a Runner?

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Multiple Choice

What is the mechanical advantage of a Runner?

Explanation:
Mechanical advantage in a pulley system is determined by how many sections of rope directly support the load. A Runner uses a single movable pulley attached to the load, with one end of the rope fixed and the rope looped around the moving pulley to the operator. This arrangement creates two rope segments that bear the load, so the pulling force is effectively shared between them. In ideal conditions, the load is supported by twice the tension you apply, giving a 2:1 mechanical advantage. Real-world factors like friction and bearing losses can reduce the actual advantage, but the basic setup yields two rope segments supporting the load, hence 2:1.

Mechanical advantage in a pulley system is determined by how many sections of rope directly support the load. A Runner uses a single movable pulley attached to the load, with one end of the rope fixed and the rope looped around the moving pulley to the operator. This arrangement creates two rope segments that bear the load, so the pulling force is effectively shared between them. In ideal conditions, the load is supported by twice the tension you apply, giving a 2:1 mechanical advantage. Real-world factors like friction and bearing losses can reduce the actual advantage, but the basic setup yields two rope segments supporting the load, hence 2:1.

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