How does water repel for a split sec?

AI Thread Summary
When diving into water, there is a brief moment where the surface appears to repel the diver due to the water's inability to flow quickly enough around the solid object. This phenomenon can be dangerous, as the impact can lead to injuries like a broken neck. Surface tension may contribute to this effect, but the primary factor is the incompressibility of water, which prevents it from yielding immediately upon impact. If the force of the dive is strong enough, the water cannot move out of the way fast enough, leading to the initial repulsion. Understanding this interaction is crucial for safe diving practices.
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This has always fasinated me, I am only like a kid so don't hate me!
:confused: When u dive into water, as soon as you hit, for a millionith of a second, the surface of the water kind of repels you. It is enough to (from a headdive) break your neck. But after that slight millionth of a second, the water kind of absorbs u.. How is it this happens? can any1 help mee?? :confused:
 
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Surface tension.
 
I think it's more a question of whether the water can move out of the way quickly enough. If you hit it hard enough, it can't flow around you. If the issue were surface tension, you could remove the effect with detergents.
 
Bing! Bing! Congratulation's cesiumfrog, you win a car!
 
I wouldn't be surprised if surface tension plays some role. But as Cesiumfrog said, it's probably that the water can't flow quickly enough. This is because water, like all liquids, is incompressible, and if it doesn't flow around a solid, it won't give way for that solid by any other means.
 
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