Final answer:
The question is about the initial compression of a spring in a gun that is pulled back 1.5 meters. Without more information, we cannot determine the exact value of the initial compression.
Step-by-step explanation:
In this question, we are dealing with the concept of springs in physics. The gun mentioned in the question consists of a spring that is pulled back 1.5 meters.
The question is asking about the initial compression of the spring, which is the distance by which the spring is initially compressed before it is released.
In order to calculate the initial compression of the spring, we would need more information such as the force constant or the mass of the gun. Without this additional information, we cannot determine the exact value of the initial compression.