ChatterBank0 min ago
Strange question...
4 Answers
If you were to perform a perfect dive into water that was deep enough, what is the highest you could jump from and survive?The reason I ask is that I've seen high divers jump from cliff faces from very high, and given that the maximum speed you can fall to Earth is 120mph, do these divers not reach that speed and if so whats the difference between that and 10,000 feet?
Answers
Best Answer
No best answer has yet been selected by 49BANDICOOT. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.120mph=roughly 60 meters per second
velocity= acceleration X time
60= 10 (9.8m/s) X time
time=60/10=6 seconds
So you will reach max velocity in 6 seconds ignnoring air resiatance.
Also V(sqrd)= 2 acc X distance
so 60X60=3600= 2 X10 X distance
so distance = 3600/20 = 180 meters to reach max velocity.
The highest headfirst dive (acapulco mexico 1934) is 35 meters, although you can break limbs at this hight. Velocity is around 60 mph i think, so you could go a bit higher feet first i guess.
I think if you controlled your speed and reduced your terminal velocity, you could survive a fall from any hight although i doubt if you would ever walk again.
You would probably break every bone in your body.
Not one to try at home.
Terminal v is so dependent on air resistance it is hard to work out. The most important factor with divers is the aspect at which they impact the water. If you present a large area to water when hitting it the water behaves inelastically. In other words its harder than concrete. Hence belly flops. If, on the other hand you present a small area you cut the water rather than compressing it and can dive from great heights without too much harm. Its all to do with the transient force interactions within the liquid matrix.