Place a 50 g weight on spring #1, and release it. Eventually, the weight will come to rest at an equilibrium position, with the spring somewhat stretched compared to its original (unweighted) length. At this point, the upward force of the spring balances the force of gravity on the weight.
With the weight in its equilibrium position, how does the amount the spring is stretched depend on the mass of the weight?
The stretch does not depend on mass.
The spring stretches more for a heavier weight.
The spring stretches less for a heavier weight.