2007-12-12 15:26:53 · 18 answers · asked by Devilsk8er77 1 in Science & Mathematics ➔ Physics
So far, the earth has never stopped rotating. If it does, it will be all over and every law of physics will be destroyed.
2007-12-12 15:31:06 · answer #1 · answered by lcmcpa 7 · 3⤊ 3⤋
The earth does, and contrary to the other posts, quite repidly too. It is just not moving WITH RESPECT TO THE HELICOPTER. The reason it does not seem like it is moving is because the helicopter is moving too.
The helicopter is moving with the rotating earth when it is on the ground. When it takes off and "hovers" above the ground, it is actually moving and not hovering in one spot. It is moving like it was before it took off--with the rotaing earth, so it is hovering only compared to the moving surface of the earth. Since it was already moving before it took off, it doesn't seem like it is moving when it is "hovering", but it is. Compared to the earth, however, it is not moving at all.
It is like when you are in a car driving down the road. Pick something straight up from your lap. Compared to you, it looks like the item was picked straight up and is "hovering" above your lap. But look outside the window and you can see the object is moving past the trees and other cars. It just doesn't look like it because you and your car are moving past the trees and other cars too.
Also, contrary to the other posts, gravity attracts the helicopter straight down (towards the center of the earth) and has absolutly NO effect on the lateral (sideways) motion of the helicopter. The helicopter keeps moving with the earth because of Newton's first law (inertia). It started off moving with the earth when it was on the ground. Since gravity does nothing to affect its sideways motion, there is no force moving the helicopter sideways (unless the pilot applies one, which he isn't if he is hovering) so it keeps moving with the earth.
As far as the earth moving slow, a few of the other posts had that incorrect as well. The earth is 24,901.55 miles in diameter at the equator. It rotates completely once in 24 hours. That means it rotates at 1,037.56 MPH at the equator! Extreamly fast, not slow as some of the other posts have stated.
Not to mention that the earth is at is shortest distance 91,000,000 miles from the sun. It orbits the sun once in a year, which is 8742 hours. Therefore the entire earth is moving at about 10,409 MPH around the sun (in actuality, the speed of the earth as it travels around the sun varies, but that is a fair, if not low, average speed). Again, not slow.
2007-12-12 15:41:54 · answer #2 · answered by Kev 3 · 1⤊ 0⤋
It only makes sense if you live in a plane and not a planet! The earth is 25000 miles in circumference and rotates at 1000 mph if the atmosphere rotated at that speed how do planes land on North to South runways
...how do plane trips take the same time east to west? If the atmosphere traveled at that speed whatever was leaving or arriving from space would be twisted up when it was a quarter or halfway thru coming from a supposed vacuum! Do you guys even use your brains and eyes? How can a road be flat for miles upon miles out west in the desert yet the road should dip 6 inches for every mile due to this curved earth
2016-12-13 21:17:37 · answer #3 · answered by J 1 · 0⤊ 0⤋
No! Gravity impacts the helicopter as no remember if it continues to be status on the floor. What lifts the copter is air and the motor power. If the earth has to go separately from the helicopter then the helicopter must be exterior the gravitational tension of the Earth.
2016-11-03 02:33:09 · answer #4 · answered by pontonio 4 · 0⤊ 0⤋
It does. But a) it rotates too slowly for anyone in the helicopter to see it, - the helicopter would have to remain in the air and in one exact spot for several hours in order to see the earth rotate under it and b) the pilot compensates for the earth' rotation by keeping the helicopter hovering over one specific point on the ground.
2007-12-12 15:37:21 · answer #5 · answered by ? 7 · 0⤊ 3⤋
relative to the speed of the helicopter the earth revolves incredibly slow, you would almost never notice the movement. The only reason the earths moment can be noted is because of its incredible size, It may seems fast in theory that the earth revolves at roughly 1 miles per second but when dealing with a spherical object that is well over 100,000 miles in circumference this is very slow. For a helicopter to be affected geographically by the earths rotation would take an amount of time much greater than the lifespan of the average tank of fuel.
2007-12-12 15:33:50 · answer #6 · answered by Anonymous · 0⤊ 3⤋
Two things.
1. Earth rotates along with its atmosphere.
2. Helicopter moves w.r.t earth and its atmosphere.
2007-12-12 17:26:09 · answer #7 · answered by Harihara S 4 · 0⤊ 1⤋
Because it is stationary with respect to the air, and the air is moving with the earth.
That's the physical answer. The real answer is that the pilot 'hovers' by visually and manually keeping the helicopter stationary with respect to something on the ground. 'Hovering' is not a stable activity!
2007-12-12 15:29:03 · answer #8 · answered by Anonymous · 1⤊ 1⤋
you'd run out of gas waiting to notice that! and the rotation would end up moving the helicopter with it anyways
2007-12-12 15:30:01 · answer #9 · answered by J DUBS 3 · 0⤊ 2⤋
Its held by gravity as well, and moves along with the earth. Even though it is hovering under its own power.
2007-12-12 15:31:24 · answer #10 · answered by rss_beatty 4 · 0⤊ 3⤋