Can a plane fly around the earth in less than 24 hous?
412157
A plane would only have to travel at approx 1000mph to go around the Earth in 24 hours.  Some supersonic jets easily travel that fast.  Throw in time for slowdowns to meet with tankers and landings to refuel.  I believe that it can be done.  I'm surprised that the government didn't have the Sr71 attempt it during its career.
31125
Hmm. I think air would not flow as well. I would guess the atmosphere would stay hovering relative to each plane (6 of them), and perhaps intersect at the corners.\n\nEach side of the earth would have varying surface temperatures, unevenly distributed, which would make the air dramatically different temperatures. This would cause the air to move, possibly faster so it could be quite windy.\n\nHee hee what a weird question, I like it :-)
47938
The first answer is correct. I think for the second answer, the questioner would probably be wondering...well, if the helicopter takes off with the same velocity as the earth, since the heli is now hovering and the earth keeps on turning, why doesn't the earth spin past the helicopter...\n\nAnd that is simply because the atmosphere is turning around with the heli, like the first answer stated.\n\nJust wanted to elaborate with another example. A fly takes off from the dashboard of a speeding car with its windows closed. Does the fly stay in air or, since the fly is now seperated from the car, does the car rush forward, making it seem like the fly is hurtled to the back of the car?\n\nEven in this case, the air inside the car is being brought along with the car at the same speed. Therefore, the speed of the fly relative to the car will always be 0.
640957
only if you fly!!!!!!!!!\n\nhahahahahahah
243834
Yes, the moon goes around the Earth at a much slower rate (28 days) than the Earth spins around once (24 hrs).\nClick on the link to the animation below. Notice how the Earth spins while the part of the moon facing us changes.
734245
It is roughly 28 day to make a trip around the earth
453022
no, as the atmosphere actually moves with the spin and the aircraft moves within the atmosphere, however stratospheric winds ( winds in the level of the atmosphere that the aircraft travel in) do affect travel time, for example a flight from say UK to Singapore takes 13 hours, from Singapore to UK takes 11 hours (aproximate) , depending on headwind, or following wind.
860965
of course you can. but the air traffic control guys are trying to keep them as far away as they can. ususlly in landing and take off you can see othe planes near by doing their final approach or trying to establish their cours.\non the other hand if you live near an airport you can see that there are specific paths according the waether that all planes follow in order to land or take off. sometime they form a line one brhind the other always in safe and large distance.\n\nnow the sky is defined mostly by volume and not area as roads do. there is too much space to "push tin"..\nnonehteless there are certain areas in the world where air traffic is huge especailly during holidays.
727320
If you were truly flying straight, you would eventually fly into outer space. Planes do follow the curvature of the earth--usually by maintaining a certain altitude.
1182585
Technically, depending upon the type of airplane and speed of the head wind, a plane can "hover".  As long as air moves over the surface of the wing fast enough to create enough lift to make the airplane fly, it will fly--it just may not have very much forward speed.\nWhy does an airplane fly?  The Bernoulli principle.  Air flowing around the wing does so at two different speeds due to the shape of the airfoil.  It flows around and over the top more quickly than along the flat bottom of the wing.  This creates higher pressure on the bottom pushing up.  As long as there is enough push to overcome gravity (or weight), the plane will fly. You might ask, then without moving forward and in no wind, how does a helicopter fly?  Well, its airfoils are always moving through the air as long as it is running--the rotors are its wings.
401228
An airplane flying in reverse of the earth's rotation will travel the same distance faster than one flying in the same direction as rotation.
78850
the 24 hours in a day represent the time needed by the earth to make a turn around the sun\nfor that we can not make the day 25 hours because it will not have any meaning
464776
I am assuming that they are assuming that there is absolutely no air acting on the helocopter except to keep it up AND that the helocopter pilot can somehow go directly straight up and down perfectly without drifting one way or another due to bad control.\n\nOK there is gravity acting on the helocopter, and it's initial velocity is the velocity of the face of the earth. So again you have to make an assumption: Is the helocopter on the equator, one of the poles, or somewhere in between? If the helocopter is on the North or South pole, then it will land exactly where it took off. However, if the helocopter takes off from a point on the equator, it will remain a the same lateral velocity as the surface of the earth, but it's distance from the center of the earth (raduis of the circle it is traveling on INCREASES. This means that the earth will continue on to the EAST, so the helocopter will land somewhere slightly to the WEST of where it started!\n\nNow if the chopper is anywhere between the equator and the pole, the distance it travels to the West depends on how far from the pole it is. We know it will not move from it's spot on the pole, and we know it will move the furthest at the equator. So the distance would be somewhere between those two. But there is MORE... If you are not on the equator, you have a north or south component to your velocity because of the fact that you are tuning to the side in a circle away from the equator. This makes sense when you consider that you are rotating in place when you are on the pole. So in addition to landing slightly west, you would also be flung slightly toward the equator for and starting spot between a pole or the equator. So the answer is that if you are in the northern hemisphere, you will drift slightly SOUTHWEST, and if you take of in the southern hemisphere, you will drift slightly NORTHWEST.\n\nThe teacher may as you, "how can we tell how far to the west we will drift?" Well remember the difference in radius between the earth surface and the height of the chopper? Well the higher you go in that 12 hour span, the slower your angular velocity, meaning the longer it takes you to travel along the circle you are tracing. Obviously if you climb up 1 foot, you will not be very far from where you started 12 hours later, however, if you use you imagination, and rise up to 1,000,000,000 miles in a second(assuming you ignore gravity from the sun and other planets), and drop back down to earth in the last second, you would be very close to the other side of the world. So somewhere between those two extremes is exactly how far you will drift.\n\nDon't be tempted to think that the helocopter will be in space somewhere due to the idea that the earth is moving around the sun because that becomes negligible when you consider the strength of gravity at a low altitude.\n\nIf your teacher wants you to assume the atmosphere is acting on the helocopter then you need a meteorologist to determine where the helocopter lands.
218504
Minimum speed that a spacecraft has is always gerater than the escape velocity i.e. over 11 Km/Sec. This means you can reach to USA under 20 mins or so!
613764
I assume you are wondering if the Earth's rotation will come into play here.  \n\nThe answer is yes.  This is the same as asking if a ball thrown in an airplane will land back in the person's hand.  Why is that so?  Everything in the plane is moving at the same speed, even the air molecules inside the cabin.  So, when the ball is thrown up, since it had the plane's speed before it was thrown, it will have that speed while going in the air, and since the air molecules are trucking along with everything else, they won't hinder the ball's motion.  \n\nIf you were to be able to watch the ball be thrown from outside the cabin, you would see the ball follow a curved parabolic path, where everyone in the cabin would see it go straight up and straight down.  You would see that curved path, because of the ball's horizontal motion due to the plane's speed.  Everyone inside wouldn't not see that, because they too are traveling with that same horizontal motion.\n\nSame thing applies here.  You share the same tangential speed as the Earth's surface, and so do all of the air molecules.  If you were able to jump for that long of time, you and everyone else around you would see you go straight up and straight down.  However, if you were being watched from space, you would follow a parabolic curve because of your tangential motion.
44361
Wind direction/resistance would be a factor, but if we disregard the wind and the planes are running at the same airspeed, the one heading westward would theoretically have a shorter flight.  This is because the Earth's rotation is eastward.  So as the plane flies westward toward it's destination, that city is also moving eastward toward the plane.  The opposite is true for the plane heading eastward.  It's destination is also moving eastward away from the plane.  While there wouldn't be much difference, the westward plane should make the flight a little more quickly.
642960
How fast are you planning to fly?  If it's 93,000,000 miles, you can do the math.\n\nSince you would probably burn up before you get there, you probably couldn't fly there.