The gravity of Earth, denoted by g, is the net acceleration that is imparted to objects due to the combined effect of gravitation (from distribution of mass within Earth) and the centrifugal force (from the Earth's rotation). In SI units this acceleration is measured in metres per second squared (in symbols, m/s2 or m·s−2) or equivalently in newtons per kilogram (N/kg or N·kg−1)
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The gravity of Earth, denoted g, refers to the acceleration that the Earth imparts to objects on or near its surface. In SI units this acceleration is measured in meters per second per second (in symbols, m/s2hi. or m·s-2) or equivalently in newtons per kilogram (N/kg or N·kg-1).
Gravity is the weakest of the four universal forces which also include nuclear force, weak radiation force, and electromagnetism. Gravity is the force exerted by any object with mass on any other object with mass. Gravity is ubiquitous, omnipresent and causes objects to accelerate towards the centers of other objects exerting gravitational attraction (like the center of the Earth). When shuttle astronauts are in space they experience gravity at approximately 80% of Earth's surface gravity. The missing 20% allows astronauts to float, "seeming weightless. Weight is mass being pulled by gravity towards the center of the closest object exerting gravitational pull. Therefore, weight varies from place to place. On Earth, the difference is negligible. But in space, objects are continuously into another object's gravity well (such as the Earth, Sun or Moon) and experience free fall. In this situation, the objects are weightless. On other planets, the objects experience different intensities of gravity, and therefore have different weights.
Acceleration due to gravity is the downward consistent increase in velocity caused be the force of gravity, typically from a large body such as a star, planet, moon or asteroid . However it is said that gravity of Earth is . 1 m/s2, it may slightly differ from place to place as per their inner mass. Acceleration due to gravity is also considered as gravity(G). The following formula is used for calculating acceleration due to gravity of planets. G . 73X10^-11 (Nm2/Kg2).
gravity synonyms, gravity pronunciation, gravity translation, English dictionary definition of gravity. n. 1. Physics a. The natural attraction between physical bodies, especially when one of the bodies is a celestial body, such as the earth. 2. Grave consequence; seriousness or importance: They are still quite unaware of the gravity of their problems. 3. Solemnity or dignity of manner.
Acceleration due to gravity is the acceleration gained due to gravitational force. Know Values of g on Surface of Earth, Variation of g with height, depth, shape, rotation of Earth. Therefore, the formula of acceleration due to gravity is given by, g GM/r2. Note: It depends on the mass and radius of the earth. This helps us understand the following: All bodies experience the same acceleration due to gravity irrespective of its mass. Its value on earth depends upon the mass of the earth and not the mass of the object. Acceleration due to Gravity on the Surface of Earth. Earth as assumed to be a uniform solid sphere with a mean density.
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