g (lower case)

Denotes gravity in mathematical notation.

Specifically, g is the acceleration due to the local gravitational field - the force exerted by the Earth on a sky diver in free fall, for example.

The sky diver experienced a force of 5 g. (not "5 g's")

g is measured in metres per second per second (m/s2) and has a value of 9.81 m/s2 on Earth.

Not to be confused with G.

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