# standard acceleration

The acceleration
imparted by the earth's gravitation
to a body located on the earth's surface: If you raise such a body up a
bit and let it fall, it will accelerate 9.81 meters per second^{2}
(32.17 feet per second^{2}), in other words: in every second, its speed will increase by 9.81 meters per second (32.17 feet per second).

Standard acceleration, abbreviated as g, is often used as a measure
for accelerations. For instance, an acceleration of 2 g corresponds to
2·9.81=19.62 meters per second^{2}.