What is the primary characteristic of a dynamic rope?

The primary characteristic of a dynamic rope is its ability to stretch under load, which is crucial in minimizing impact forces during climbing or rescue scenarios. When a dynamic rope is subjected to a sudden force, such as when a climber falls, it elongates to absorb the energy of the fall. This quality reduces the potential for injury to the climber and lessens the impact on anchors and protection points.

In contrast, other options suggest characteristics that do not apply to dynamic ropes. For instance, the idea that dynamic ropes have less than 10% elongation or do not stretch at all is inaccurate, as their primary function is to stretch to absorb shock. They are not suitable for static loads, which are best handled by static ropes that do not stretch, therefore ensuring stability and predictability in those scenarios. Understanding this characteristic of dynamic ropes is essential for safe operations in rescue and climbing situations, where managing forces effectively is critical.