The Earth's gravitational force unlike the Earth's atmosphere has no limit or boundary. Newton's Universal Law of Gravitation states that the force is inversely proportional to the square of the distance between the centers of attracting bodies..
Also asked, what is the limit of gravitational force?
At altitudes equal to the radius of the Earth, 6378 kilometers or so, the force drops to 1/4 to what it is on the surface but it is not zero. It is not zero even at 400,000 kilometers from the Earth - which is why the Moon is orbiting the Earth.
One may also ask, what does 9.81 mean? It means, for acceleration of 9.81 (m/s^2), the velocity will increase by 9.81 meter/sec. It means, if you let a body fall freely (on earth), then this is the rate at which it will gain in speed towards the ground. It's called the acceleration due to gravity.
Consequently, what is the range of Earth gravity?
Gravity on the Earth's surface varies by around 0.7%, from 9.7639 m/s2 on the Nevado Huascarán mountain in Peru to 9.8337 m/s2 at the surface of the Arctic Ocean. In large cities, it ranges from 9.7760 in Kuala Lumpur, Mexico City, and Singapore to 9.825 in Oslo and Helsinki.
Where gravity is maximum?
Lots of places state that the Earth's gravity is stronger at the poles than the equator for two reasons: The centrifugal force cancels out the gravity minimally, more so at the equator than at the poles. The poles are closer to the center due to the equatorial bulge, and thus have a stronger gravitational field.
Related Question Answers
How is gravity calculated?
To calculate the force of gravity of an object, use the formula: force of gravity = mg, where m is the mass of the object and g is the acceleration of the object due to gravity. Since g is always 9.8 m/s^2, just multiply the object's mass by 9.8 and you'll get its force of gravity!Is gravity a force?
This equivalence between floating and falling is what Einstein used to develop his theory. In general relativity, gravity is not a force between masses. Instead gravity is an effect of the warping of space and time in the presence of mass. Without a force acting upon it, an object will move in a straight line.What is value of G?
In the first equation above, g is referred to as the acceleration of gravity. Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2.What kind of force is gravity?
Gravity is the force that attracts two bodies toward each other, the force that causes apples to fall toward the ground and the planets to orbit the sun. The more massive an object is, the stronger its gravitational pull.How many G Can a person survive?
There are isolated incidents of humans surviving abnormally high G-forces, most notably the Air Force officer John Stapp, who demonstrated a human can withstand 46.2 G's. The experiment only went on a few seconds, but for an instant, his body had weighed over 7,700 pounds, according to NOVA.At what distance gravity ends?
It doesn't end at any distance. Gravitational force has an infitine range, that is no matter how far away you are from the source of gravity, you will still gravitate to it.How does zero gravity affect the human body?
Muscle atrophy and osteoporosisOne of the major effects of weightlessness that is more long-term is the loss of muscle and bone mass. In the absence of gravity there is no weight load on the back and leg muscles, so they begin to weaken and shrink.How can I calculate weight?
The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.Does zero gravity exist?
Full story. The sensation of weightlessness, or zero gravity, happens when the effects of gravity are not felt. Technically speaking, gravity does exist everywhere in the universe because it is defined as the force that attracts two bodies to each other. But astronauts in space usually do not feel its effects.What is gravity made of?
They proposed that gravity is actually made of quantum particles, which they called "gravitons." Anywhere there is gravity, there would be gravitons: on earth, in solar systems, and most importantly in the miniscule infant universe where quantum fluctuations of gravitons sprung up, bending pockets of this tiny space-What is the strongest force on earth?
The strongest force on Earth and in the universe is the strong nuclear force. The strong nuclear force is what keeps the positively charged protonsHow fast is gravity?
Or, to be more precise, gravity moves at 299,792,458 metres per second, a rate we can just call c.What is Earth made of?
The Earth is made out of many things. Deep inside Earth, near its center, lies Earth's core which is mostly made up of nickel and iron. Above the core is Earth's mantle, which is made up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals.Is space a vacuum?
Outer space has very low density and pressure, and is the closest physical approximation of a perfect vacuum. But no vacuum is truly perfect, not even in interstellar space, where there are still a few hydrogen atoms per cubic meter.Where is gravity?
The force of gravity is the weakest at the equator because of the centrifugal force caused by the Earth's rotation and because points on the equator are furthest from the center of the Earth. The force of gravity varies with latitude and increases from about 9.780 m/s2 at the Equator to about 9.832 m/s2 at the poles.Who defined gravity?
Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. Sir Isaac Newton (1642 -- 1727) discovered that a force is required to change the speed or direction of movement of an object.Does gravity change on Earth?
Gravity map reveals Earth's extremes. Gravity is often assumed to be the same everywhere on Earth, but it varies because the planet is not perfectly spherical or uniformly dense. In addition, gravity is weaker at the equator due to centrifugal forces produced by the planet's rotation.How is 9.81 calculated?
The acceleration g=F/m1 due to gravity on the Earth can be calculated by substituting the mass and radii of the Earth into the above equation and hence g= 9.81 m s-2.What is the unit of acceleration?
The SI unit of acceleration is the metre per second squared (m s−2); or "metre per second per second", as the velocity in metres per second changes by the acceleration value, every second. 
Robert Bradley 
