according to newton the force is directly proportinal to the product of the masses & inversly to the sum of the distance between them, since sun's mass is impressingly huge it should attract all the planets towards itself consequently colliding with them.why doent it happen?
2006-06-29 19:48:30 · 8 answers · asked by basilisk_1313 1 in Science & Mathematics ➔ Astronomy & Space
Technically, it is ... just slowly ... the orbits that the planets make around the sun are actually the planets spiralling inward toward the sun ... they will collide with the sun eventually.
2006-06-29 19:52:05 · answer #1 · answered by Mags 2 · 0⤊ 0⤋
Because the gravitional pull is very small. By Newton's law of gravitation,
F= (GM1M2) / r2
Where G is the gravitation of the earth, defined as 6.67x10-11
M1 is the centre of the mass of the earth
M2 is the centre of mass of the Sun
r2 is the radius between the distance of the Sun and the earth.
So by calculation, the force will not be great enough to "gobble" up all the planets.
2006-06-30 04:06:14 · answer #2 · answered by SL 4 · 0⤊ 0⤋
It wouldn't happen because the velocity of the Earth would pull Earth outward while the Sun would pull Earth inward. It is the same reason for why planets orbit around the Sun.
2006-06-30 04:36:19 · answer #3 · answered by Eric X 5 · 0⤊ 0⤋
It's called gravitational acceleration, which is also the reason that satellites are able to remain in orbit around the Earth. When a given satellite travels around the Earth, one of three things can occur:
1. The satellite has too much speed and leaves orbit flying out into space.
2. The satellite travels at precisely thr right speed allowing it to stay in orbit.
3. The satellite travels to slowly, allowing the Earth's gravity to overcome the centripetal acceleration of the satellite, sucking back down to Earth.
Think of this like a string tied to a bucket of sand you are spinning around you. If you spin it too fast, it could potentially gain enough force to fly out of your hands. Spin the right speed and it will stay airborne around you. Spin it too slowly and the bucket won't stay in the air.
2006-06-30 03:03:30 · answer #4 · answered by Drew 2 · 0⤊ 0⤋
We are actually going away from the sun. However the sun is swelling and will soon be a red dwarf and swallow earth in about 200 some million years lol
2006-06-30 04:00:08 · answer #5 · answered by Gh0stmedic 2 · 0⤊ 0⤋
The best answer i could give you is that all the planets pull them selves away from the sun by acting on on an-others gravitational pull.
2006-06-30 03:10:44 · answer #6 · answered by keiko p 1 · 0⤊ 0⤋
The science says its centrifigual force pushing out balances the gravity pulling in. But I say its Gods handiwork
2006-07-06 19:21:13 · answer #7 · answered by Anonymous · 0⤊ 0⤋
every planet has own gravity so its movin in the own orbit
2006-06-30 03:01:21 · answer #8 · answered by richi rasyid 4 · 0⤊ 0⤋