What is the value of g on a pole?
This acceleration due to gravity is one of the fundamental forces and has a fixed value of 9.8m/s2.
Why does the value of g is more in equator than pole of earth?
Earth is not a perfect sphere. The distance from the poles to the centre of the earth is lesser than the distance from the equator to the centre of the earth. Therefore the acceleration due to gravity is greater at the poles than at the equator.
How do you find G at the equator?
The acceleration at the poles is the gravitational acceleration, the acceleration at the equator is the gravitational acceleration minus the centripetal acceleration. Therefore g = 2V2/R. ½mv2 – GMm/R2 = 0, v2 = 2GM/R = 2gR = 4V2. v = 2V.
How do you find the value of g at the equator?
Acceleration due to gravity is represented by g. The standard value of g on the surface of the earth at sea level is 9.8 m/s2….
| Acceleration Due to Gravity (g) | |
|---|---|
| Symbol | g |
| SI Unit | ms-2 |
| Formula | g = GM/r2 |
| Values of g in SI | 9.806 ms-2 |
Why the value of g is less at Equator and more at poles?
It is frequently stated that the value of the acceleration due to gravity at the pole is larger than at the equator because the poles are closer to the center of the earth due to the earth’s oblateness. The measured value is larger because the earth’s density is not uniform but increases toward the center.
Where is value of g minimum at poles or at Equator?
The value of ‘g’ is minimum at the equator because earth is not a perfect sphere. Its radius is maximum at the equator. Hence according to equation g = GM/R2 , the equator is the place where g will be minimum. Why the value of g is more at the poles than at the equator of the earth?
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. There are slight variations in the value of g about earth’s surface.
Why is g least at the equator?
The value of ‘g’ is minimum at the equator because Earth is not a perfect sphere. Its radius is maximum at the equator. Hence according to equation g = GM/R2 , the equator is the place where g will be minimum.
How do I calculate g?
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.
How much is value of g at the equator?
Using Newton’s law of gravity, we find that the force of earth’s gravity on your body at the equator is 9.798 m/s2 times the mass of your body, whereas at the poles it is 9.863 m/s2 times the mass of your body. The earth’s centrifugal force also varies with latitude.
What is Big G and Little G?
The constant of proportionality, G, is the gravitational constant. Colloquially, the gravitational constant is also called “Big G”, distinct from “small g” (g), which is the local gravitational field of Earth (equivalent to the free-fall acceleration).
What is Big G equal to?
In SI units, G has the value 6.67 × 10-11 Newtons kg-2 m2. The direction of the force is in a straight line between the two bodies and is attractive. Thus, an apple falls from a tree because it feels the gravitational force of the Earth and is therefore subject to “gravity”.