A bungee jumper with mass 64.0 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 35.2 s. He finally comes to rest 27.0 m below the level of the bridge.
Calculate the spring stiffness constant of the bungee cord.
_______ N/m
Calculate the unstretched length of the bungee cord.
________ m