Greetings physics superhumans!
If an adult human person is floating in a free-falling elevator, sealed and filled completely with water (no air space), that is damaged on impact in normal elevator fashion; would they experience deadly force or would being immersed in water and destruction of the elevator somehow dissapate the collision energy?
For bounding parameters, I'd be interested in how the results differ if the elevator would fall from:
- 10 meters
- 25 meters
- 50 meters
- It lands on the concrete floor of an elevator shaft
- Is made from stainless steel
- Weighs 1000 kg
- Contains a 70 kg human who can hold their breath for the duration
- Is completely filled with 2500 kg of 20 degree C water (elevator dimensions 1 m x 1 m x 2.5 m)
- For some reason the cable has vanished, and the elevator has no safety mechanisms that would halt or slow its fall
- Gravity accelleration is normal
I don't know if position in the elevator is relevant, or if the water pressure will increase at the end of the fall and crush them against the top of the elevator, crush the air in their lungs, etc. Please assume the human starts on the water-filled elevator floor and moves according to normal forces (whatever they would be in this scenario). Also, if the breath-hold is the critical factor in survival, the human starts with full lungs but may exhale on/before impact, but only at normal human rates.
Apologies if this is ill-defined, repeated, or poorly worded. I couldn't find a similar question online and I don't know what reasonable Google terms or the relevant factors are (I'm sure this has been answered previously at some point, probably in relation to futuristic vehicle crash resistance foam etc). It's based on a dream I had about being a superhero, who's only power was to fill and empty spaces with water instantly.
Many thanks for your help!