Mathematically, we say the force of gravity depends directly upon the masses of the objects and inversely upon the distance between the objects squared. [ F = G M1 M2 / D2 ] The G in the relationship is a constant that is called the universal gravitational constant.
What is the gravitational constant?
The gravitational constant is the proportionality constant that is used in Newton's Law of Gravitation. The force of attraction between any two unit masses separated by a unit distance is called the universal gravitational constant denoted by G measured in Nm2/kg2.
What is the gravitational field?
A gravitational field is the force field that exists in the space around every mass or group of masses. This field extends out in all directions, but the magnitude of the gravitational force decreases as the distance from the object increases.
What is the constant of gravitation called?
The universal gravitational constant (G) is equal to the gravitational force between two objects of unit mass each and separated by a unit distance. It works in the same way everywhere in the universe anytime. Its value is 6.627 x 10-11 Nm2kg-2 always. Hence, it is called the universal constant.
Also known as "Big G" or G, the gravitational constant was first defined by Isaac Newton in his Law of Universal Gravitation formulated in 1680. It is one of the fundamental constants of nature, with a value of (6.6743 ± 0.00015) x10^–11 m^3 kg^–1 s^–2.
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