The Royal Gorge bridge over the Arkansas River is about L = 310 m high. A bungee jumper of mass 60 kg has an elastic cord of length d = 50 m attached to her feet. Assume that the cord acts like a spring of force constant k. The jumper leaps, barely touches the water, and after numerous ups and downs comes to rest at a height h above the water.

(a) Find h.

(b) Find the maxi mum speed of the jumper.