2006-11-02 01:49:49 · 6 answers · asked by chotu 1 in Science & Mathematics ➔ Astronomy & Space
A simple answer and that is because of the gravitational force.
It also has no orbit.
2006-11-02 03:15:43 · answer #1 · answered by Raven 6 · 1⤊ 0⤋
Once an object enters Earth's atmosphere (actually, it might even be before that), that object is pulled toward the planet by gravity, which comes from the center of Earth.
2006-11-02 01:57:34 · answer #2 · answered by jnowak5 2 · 0⤊ 0⤋
when any object crosses nearby the earths atmosphere it is attracted by the earths gravitational force and falls in the earths atmosphere. when it enters the atm. it gets resisted by the atm. and starts burning.
2006-11-05 05:05:08 · answer #3 · answered by Mysterious 3 · 0⤊ 0⤋
i'm gonna make this as simple as possible, as the actual explanation requires in-depth physics!
for an object to maintain stasis in space, it must be moving and has to be the exact distance from the other objects near or far so that it's gravity is neutralized.
every single object has gravity... yes, even you! but the gravitational force of an object our size is minuscule. however, a planet would have more force, and the sun would be even stronger.
centrifugal force keeps an object away from the epicenter of its revolution (try spinning your keychain...) now as it slows down, it returns to it's centre of gravity (slow down your spinning keychain and watch as it comes to a straight line)...
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THE ANSWER TO YOUR QUESTION!
similarly, anything that's zooming through the Earth's atmosphere is slowed by the friction against the air, and once it's escape velocity is lost, it will need to return to the centre of gravity, and for an object near the earth, it would be Earth itself... so it would fall down.
but a jet-plane doesn't fall down, because it uses acceleration to generate thrust... and a rocket powers-up to achieve escape velocity that helps it escape Earth's powerful gravity...
hope this helped you! do write me if you need it explained in more detail...
enjoy!
2006-11-02 02:21:34 · answer #4 · answered by bangaloresizzler 2 · 0⤊ 0⤋
To be caught in orbit, an object would have to be going an exact speed and hit the exact place at the right time and at the right angle. This would be a rare occurrence.
2006-11-02 01:55:17 · answer #5 · answered by Anonymous · 0⤊ 0⤋
As earth has a gravitational force of 9.8 m/s which attracts things towards it. And this force is so much high that it attracts all things towards it...for more info visit ...http://en.wikipedia.org/wiki/Gravitational_force
2006-11-02 02:18:34 · answer #6 · answered by Nishant 2 · 0⤊ 0⤋