gravitaatiokiihtyvyytenä

Gravitaatiokiihtyvyytenä, often abbreviated as g, refers to the acceleration experienced by an object due to gravity. On Earth's surface, this value is approximately 9.80665 meters per second squared (m/s²). This means that for every second an object falls freely, its speed increases by about 9.8 meters per second. The gravitational acceleration is not constant across the entire Earth. It varies slightly due to factors such as altitude, latitude, and local geological variations. Higher altitudes generally experience slightly weaker gravitational acceleration. At the poles, gravity is slightly stronger than at the equator due to the Earth's rotation.

The value of g is a fundamental constant in physics and is crucial for understanding motion under the influence of gravity. It is used in calculations involving projectile motion, orbital mechanics, and the weight of objects. Weight itself is the force of gravity acting on an object's mass, calculated as mass multiplied by gravitational acceleration (Weight = mass × g). While often referred to as a constant, it's important to remember that g is an approximation for Earth's surface and changes significantly in different gravitational environments, such as on other planets or in space. The direction of this acceleration is always towards the center of the massive body causing the gravitational pull.