Suppose that in the lab, you build a set of identical balls connected by identical springs, as shown below.
A 2-D ball-and-spring model.
The masses of the balls and springs are negligible compared to the block that you hang from the apparatus. If you hang a 0.25-kg block in equilibrium, the apparatus stretches 0.050 m from its relaxed length.
- What is the stiffness of each spring?
- How much did each spring stretch?