|
Author
|
Message
|
![[Post New]](/templates/default/images/icon_minipost_new.gif)
5 Oct 2008 08:28:04 IST
|
|
|
Why does an artificial satellite sent by us fall on the earth after some years.....
If so why does the moon ( a satellite of earth) does not fall on earth !!!!!!!!!
RATES ASSURED FOR ALL ANSWERS...
|
Intelligence is not to make no mistakes,
But quickly to see how to make them good..
|
|
|
|
5 Oct 2008 13:47:11 IST
|
|
|
any replies please..... rates assured....
|
Intelligence is not to make no mistakes,
But quickly to see how to make them good..
|
this reply:
0 points
(with 0
in
0
votes
)
[?]
|
|
You have to be logged on to rate
|
|
|
5 Oct 2008 14:04:43 IST
|
|
|
The satellite is in freefall.As its mass is negligible as compared to earth ,so if some changes in gravity occur then its path gets disturbed and it falls on earth
But in case of moon it is not under freefall and the centrifugal force is balancing the attraction and moon's mass is not negligible.
|
this reply:
4 points
(with 0
in
2
votes
)
[?]
|
|
You have to be logged on to rate
|
|
|
5 Oct 2008 16:47:55 IST
|
|
|
Any satellite never fall itself !
but when a satellite become old and useless then it is made to fall on earth so that it may not collide with some other space shuttle ot satellite in future
|
Beat others otherwise they will beat u |
this reply:
5 points
(with 1
in
1
votes
)
[?]
|
|
You have to be logged on to rate
|
|
|
|
|
|
|
In reality, nothing holds the Moon up. As Newton's inertial frame analysis predicts, the Moon is completely under gravity's thrall; in other words, it falls, because in such a frame there's only one force on the Moon: gravity. Gravity accelerates it. That doesn't mean its speed must necessarily change, or that it must get closer to Earth (although actually both of these things do occur slightly during the month, but that's not an important point). If Newton's F=ma is solved for the general case of falling under gravity, the motions that result are lines, circles, ellipses, parabola, and hyperbola..........
The Moon, and every other satellite, fall just as surely as an apple does when pulled down by gravity. Whereas the apple changes its speed but not its direction of motion, the Moon changes its direction of motion, but not its speed. The real difference between a satellite and an apple falling from a tree, is that for the fast sideways-moving satellite, the direction of "down" is always changing.
|
this reply:
5 points
(with 1
in
1
votes
)
[?]
|
|
You have to be logged on to rate
|
|
|
|
|
Moderation Team
Community Discussion Question:
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
