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The planets orbit because they are plunging through space at high speed but they are close to the Sun, which has a large gravitational pull. So the Sun continuously pulls them. That makes them settle into going round the Sun in a circular orbit, or elliptical to be more accurate.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoThe Sun has a huge gravitational pull on all of the planets from Mercury to Pluto. the gravitational pull keeps all of the planets in orbit with the Sun.
GRAVITY:
In general the formula was developed by Isaac newton and is F=G([m1*m2]/D^2)
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F is the force of gravity being calculated in Newtons
G is the Gravitational Constant of 6.673E-11 Newtons.
The Ms are the masses of the objects in question.
D is the distance between the centers of the objects.
If what you want is a formula for acceleration due to gravity on Terra, it would be 9.8m/s/s (9.8 meters per second per second). Exempli gratia, if an object falls for one second it will travel at 9.8, if it falls for two it will be at 19.6, for three a speed of 29.4.
These are the two "formulas for gravity," have fun with physics.
To find gravity of earth...
Let M= mass of earth
m= mass of an object on earth.
R= radius of earth.
You may know F=mg, g being the gravity of earth.
Also, the force exerted on the body by earth, F=GMm/R(square)
So, g= F/m which is GM/R(square) which is a constant = 9.8m/s(square)
It means a body will gain a velocity of 9.8m/s each second during its free fall, neglecting other forces like air resistance acting on it.
You might wonder why rain drops coming from such height do not gain much speed. Its because it attains a constant terminal velocity due to air resistance. Just imagine if this might not have been the case!
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Do stars orbit planets or planets orbit stars?
Planets orbit stars.
Planets orbit around the sun but what do moons orbit?
Planets
Why don't planets have orbit?
All planets orbit around a sun.
What do the 8 planets orbit in?
The 8 planets orbit around the Sun, in ellipses.
Do the stars or dwarf planets orbit planets?
No. Dwarf planets orbit stars just like planets do. Stars orbit the center of their galaxy. An object orbiting a planet would be a moon.
Do stars orbit planets or planets orbit stars?
Planets orbit stars.
Do all the planets have smaller planets orbiting them?
No. Planets orbit suns, while moons orbit planets. Planets do not orbit planets.
How many moons do the suns have?
The Sun has no moons. Moons orbit Planets > Planets orbit the Sun.
How fast do the planets orbit the earth?
The planets do not orbit the Earth, they orbit the sun.
Do the stars orbit the planets or do planets orbit stars?
Moons orbit planets. Planets orbit stars. Some stars orbit other stars, or orbit their mutual center of gravity. Stars orbit the center of the galaxy. Galaxies may orbit the center of the "galactic group".
Do all planets have an orbit?
Yes all planets have a orbit
Planets orbit a star?
yes, planets do orbit a star
Do all planets orbit the moon?
No. The planets orbit the sun.
Planets orbit around the sun but what do moons orbit?
Planets
Does the sun orbit the planets or do the planets orbit the sun?
The planets orbit the Sun. The Sun is at the center of our solar system and does not move.
What do tiny planets orbit?
Like larger planets, dwarf planets also orbit the sun.
Why don't planets have orbit?
All planets orbit around a sun.
