How fast do you have to go to walk/run/move on top of a large mass of water?

Question

And are there any other things involved? I'm talking about things like a person "walking" on water and cars driving on top of a large mass of water. I'm sure theres some sort of equation for this. This has nothing to do with religion, just scientific curiousity.

Answer 1

The gravity pulls us toward the center. On the ground, the ground exerts reaction force and hence we are able to stay at rest on the ground.



To avoid pressing the floor, the mimimum speed is given by the formula v v/ R = g.



Taking the radius of earth as 6300 000 m and g = 9.8 m/s^2

the value of v = 7857.4 m/s approximately 8km/ s or 28800km/hour.



When we move with this speed we will not press the earthor water underneath.

Answer 2

try googling that one little lizard that runs on top of the water. He has "ears" that spread open like fans when he runs. Its pretty small/ light so I'm sure weight obviously has an advantage.



I know you're not looking for a religious answer, but the site below just happened to be what popped up when I googled "lizard run on water". It has some scientific explanations.

Answer 3

Well for a hydrofoil-type boat it's pretty fast, and a person's feet are tiny so it'd have to be really fast and far beyond any human's ability.

But there's a lizard that does this.





I'm pretty sure over 200 mph of wind will allow a person to fly like a flag.

Answer 4

That depends on a lot of factors like your weight the area of you foot, the distance to be spanned, your divinity (LOL) Seriously many insects and the Jeasus Christ lizzard do in fact walk on water because of its high surface tention, and, in the case of the lizzard, wide feet and quick speed. In the case of us sinning humans, we have very narrow feet with respect to our weight, so we break through water's surface tension within a few tenths of milliseconds

Answer 5

well theres the lizard and the water strider, which both use viscosity, and ive only seen people walk on water when there was a board on top of the water, or rice paper

Answer 6

it all depends on the weight if the object relative to the surface area that is in contact with the water. like a car driving in a rain storm will hydroplane on the water

Answer 7

The only example I know of is water skiing without skis. You need a minimum of about 30 mph to stay up.

Answer 8

well bro, if you're curious do an experiment! otherwise, unless God is guiding you, i wouldn't attempt it! well, in anything deeper than 12ft i wouldn't. good luck