Pulling a stretched string generates a force that can be attributed to tension in the string rather than inertia. Tension occurs when the string is stretched, creating a force that acts along its length. Inertia, on the other hand, relates to an object's resistance to changes in its state of motion. The force felt on the hand is a direct result of the tension created when the string is pulled. Understanding the distinction between tension and inertia clarifies the mechanics involved in this scenario.