Part C: The Theoretical Bungee Jump 1. You will now calibrate your bungee cord. As you did with the spring, make measure- ments of the stretch length as you attach various weights to the end. You will need more data points than you obtained for the spring since the force on the bungee cord is not linear in the stretch length. Add mass to the cord in increments of 200 grams from 250 to 1650 grams of mass. 2. Graph the weight versus the stretch length for the bungee cord. Does the bungee cord obey Hooke's law? Explain. 3. From the graph, you can determine the potential energy stored in the cord as a fune- tion of the stretch length. Remember that the potential energy is just the integral of the force over distance.