2006-07-24 17:04:37 · 9 answers · asked by Go4It 2 in Science & Mathematics ➔ Physics
Well, if you're going really fast on skis or ice skates, then it's because the water is frozen.
2006-07-24 17:08:43 · answer #1 · answered by Liam 2 · 0⤊ 0⤋
It's due to the fact that water is incompressible. When you do a swan dive into the water, you put your hands together, arch your back and enter the water headfirst. You cleave the water cleanly and with little splashing because the water is able to get out of the way of the water you displace.
It's different when you do a belly-whopper. Then, the same mass is being forced into the water, over a larger area. You cause a great big splash because you do not cleave the water cleanly. The water is unable to get out of its own way. Since it cannot go down, or sideways, some of it is forced to go UP and you get a big splash!
If you are going really fast, the water can't even splash up fast enough, and it feels like you are hitting a brick wall. This is what will kill a parachutist whose parachute does not open, if he lands in a lake. This is what usually kills people who jump off tall bridges, like the Golden Gate bridge in California. They break their necks (or at least knock themselves unconscious) hitting the water, then drown.
The incompressibility of water is also what makes depth charges work against submarines. The explosive force is transmitted through the water much more intensely than through a compressible medium like air. It is easier to crush the nearby sub than to lift lots of water high up to the surface.
Incompressibility is also why sound travels faster through water than it does through air. Why don't you search on the properties of water? You can probably find a lot fo interesting things.
2006-07-25 00:22:43 · answer #2 · answered by cdf-rom 7 · 0⤊ 0⤋
Because water is non-compressable. It is displaceable but when you hit the water the speed of your impact is too great to allow the water to be displaced. Therefore, much of the energy of your impact is reflected back into your body. That's why the water feels like a solid object.
2006-07-25 00:20:43 · answer #3 · answered by kevpet2005 5 · 0⤊ 0⤋
Because it is still your body that is giving the force and pressure to break the surface tension of the water, and water has mass greater than, say, air. Your body absorbs the impact more than the water does.
2006-07-25 00:09:22 · answer #4 · answered by Strange question... 4 · 0⤊ 0⤋
as som1 ritely said Surface Tension. The more faster you hit the water the lesser time u hav for absorbing the shock.
2006-07-25 07:35:36 · answer #5 · answered by viking_inin 2 · 0⤊ 0⤋
a very large surface tension due to the chemical make up of water.
2006-07-25 00:28:46 · answer #6 · answered by nobody722 3 · 0⤊ 0⤋
it feels like a hard solid because it is.
2006-07-25 04:11:02 · answer #7 · answered by FakieVarialFlip 1 · 0⤊ 0⤋
It looks like you got your answer already. By the way, I hope you are feeling better......
2006-07-25 00:23:36 · answer #8 · answered by Anonymous · 0⤊ 0⤋
WATER TENSION
2006-07-25 00:08:57 · answer #9 · answered by Raymond Chan 2 · 0⤊ 0⤋