G-value

1. Gravity G=mg, also known as "gravity acceleration" in physics.
The acceleration of an object near the earth's surface when it is only subjected to gravity is called gravitational acceleration, or the acceleration of a free falling body, expressed in G. The direction of gravity acceleration g is always vertical downward. At the same location, the gravitational acceleration of any object is the same. Both theoretical analysis and accurate experiments show that the value of the gravitational acceleration g increases slightly with the increase of latitude, such as g=9.780 m/s near the equator and g=9.832 m/s in the Arctic. Since G does not change much with latitude, the gravitational acceleration g = 9.80665 m/s 2 measured accurately at sea level of 45 degrees latitude will be used as the standard value of gravitational acceleration in the world. In solving the problems near the earth's surface, G is usually taken as a constant. In general calculation, g=9.80 m/s can be taken. The acceleration of gravity decreases with altitude. When objects are far below the earth's radius, G does not change much. However, when the height above the ground is large, the value of gravitational acceleration g decreases significantly. At this time, G can not be regarded as a constant [1].

Gravitational acceleration is the acceleration of an object under the action of gravity. Also called free falling acceleration, expressed in G. The direction is vertical downward, and its size can be determined by various methods.

The acceleration of objects falling near the ground by the earth's gravity in vacuum is usually referred to as G. For ease of calculation, the approximate standard values are usually 980 cm/s or 9.8 m/s. The acceleration of falling objects near the surface of the moon, other planets or stars is called the acceleration of gravity of the moon, the acceleration of gravity of a planet or stars respectively.

The Chinese name Gravitational Acceleration is also known as Gravitational Acceleration Expressions of Free Falling Body Acceleration g=G*M/(r^2). The author of Galileo's Measurement of Applied Scope of Physics in Applied Discipline The speed is 7-8G, and beyond this acceleration, it will become unconscious or even die. Because the cause of the acceleration is the force, and the acceleration of n G is equal to N times its own gravity in the direction of the acceleration. That is to say, if you weigh 60 kg (gravity 588N), if you get 10 G acceleration in an airplane or rocket, you will have to bear 5880N. Force, such a large force, ordinary people are difficult to bear, even highly trained people, the body will suffer great harm. For example: 5G refers to the 5-gravity acceleration. Because the industrial control equipment application environment is more complex, so it requires the ability to resist impact, which means that the module can resist the maximum 5-gravity acceleration. To attack.