Gravitational acceleration is the rate of change of velocity of an object due to gravity. The SI unit of gravitational acceleration is the meter per second squared (m/s2).

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun. Earth's gravity is what keeps you on the ground and what makes things fall.

The strength of gravity depends on two things: the mass of the object and the distance between the object and the center of gravity. The more mass an object has, the more gravity it has. The closer you are to an object, the stronger its gravitational pull is on you.

The acceleration due to gravity is greatest at the planet's surface and decreases as you move away from the surface. For example, at the top of a tall building, you are farther from the center of the Earth than you are at its surface, so you experience less gravitational acceleration.

The force of gravity also affects objects that are in motion. An object in motion will continue in motion in a straight line unless a force acts on it. Gravity is the force that causes objects to change their direction of motion. When an object is falling, gravity is pulling it toward the center of the Earth. The faster an object is falling, the greater the force of gravity is on it.

The force of gravity also affects objects that are not in motion

#### Is 9.

81 the acceleration of gravity? As of 2019, the answer is "no".

In 2019, the International System of Units (SI) redefined the unit of measurement for acceleration from "meters per second squared" (m/s^2) to "kilometers per second squared" (km/s^2). This means that the acceleration of gravity is now defined as 9.806 65 km/s^2.

### Why is gravitational acceleration?

The gravitational acceleration is the force that attracts objects towards the center of the Earth. It is caused by the Earth's gravity. The force of gravity is weaker on objects that are further away from the center of the Earth.

The gravitational acceleration is also the force that drives the orbits of planets and satellites around the Sun. The force of gravity is weaker on objects that are further away from the Sun.

The gravitational acceleration is also the force that drives the motion of galaxies and clusters of galaxies in the Universe. The force of gravity is weaker on objects that are further away from the center of gravity of the system. Is gravity always 9. 8 N? No, gravity is not always 9.8 N. The value of gravity varies depending on the location on Earth. For example, gravity is 9.78 N at the equator and 9.83 N at the poles. Why is 9. 8 m/s squared? The value 9.8 m/s squared is the standard acceleration due to gravity on Earth. This value was established by the International Organization for Standardization (ISO) in the 1980s. How many Gs is Earth gravity? Earth's gravity is 1 G.