Joy Ride has decided to try bungee jumping at the state fair. To determine the strength of the bungee cord she watches someone that she estimates to be 80 kg on a jump. She times the period of the jumper's oscillation and gets 7.5 s. What is the spring constant of the bungee cord? (6 pts) 19. Given a set of masses, a meter stick, a ring stand and clamp, and a spring of an unknown spring constant, how can you determine the spring constant of the spring. Be as detailed as possible. (Spts)