Two identical test dummies are each dropped from a height of 3.00 m. The first is dropped onto the concrete, and the skull fractures. The 2nd is dropped in the same manner also onto concrete but is also wearing a bicycle helmet and the skull does not fracture. Use the terms force, impulse, and time to explain why the two identical test dummies dropped in the same manner had very different outcomes

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.