Final answer:
When you stretch a spring is negative or positive work applied, the given statement is b. false because when a spring is stretched, positive work is applied and potential energy is stored.
Step-by-step explanation:
The work done by a spring force is determined by the displacement of the spring from its equilibrium position. If the spring is stretched (positive displacement), positive work is done on the spring. This means that energy is transferred to the spring, causing potential energy to be stored.
For example, if a spring is stretched by pulling on it, you are applying a force in the same direction as the displacement, resulting in positive work. This increases the potential energy stored in the spring.
In contrast, if the spring is compressed (negative displacement), negative work is done on the spring. In this case, you are applying a force opposite to the displacement, reducing the potential energy stored in the spring. So therefore the given statement is b. false.