Question

A bungee jumper who is about to jump has her energy stored entirely asgravitational potential energy. After jumping, she bounces up and down. Whathas happened to her initial gravitational potential energy when she reachesequilibrium - that is, when she stops bouncing up and down?OA. Friction and air resistance have converted all of her initial energyto heat and sound.OB. She has regained all of her initial energy as gravitational potentialenergy.C. Some of her initial energy has been transferred to potential energyin the bungee cord.D. The different energy types (gravitational potential, kinetic, andspring potential) have balanced.

Answer 1

C. Some of her initial energy has been transferred to potential energy in the bungee cord.

Step-by-step explanation

A quick diagram of this situation may help us understand the problem better,

When the bungee jumper stops bouncing up and down - in other words, she is at rest again, her energy is not zero. So, not all of her initial energy was transformed into other types of energy.

When we jumped, her potential energy was transformed into kinetic energy and spring potential, then converted to potential energy again, and so on until she stopped.

Hence, when she stopped bouncing she regained a part of her initial energy as gravitational potential energy, but some of her initial energy has been transferred to potential energy in the bungee cord.