What is 9.8ms2

Since a large object will feel a large force of gravity and a small object will feel a small force of gravity, we can't really talk about the "force of gravity" being a constant. We can talk about the "gravitational field strength" in terms of the amount of gravitational force per kg of mass 9. It should be noted that the strength of gravity is not a constant - as you get farther from the centre of the Earth, gravity gets weaker.

This is why we use the average value of 9. As per Law of Universal Gravitation the force of attraction between two bodies is directly proportional to the product of masses of the two bodies. That is the force of gravity follows inverse square law. Where G is the proportionality constant. It has the value 6. What does it mean to say that the gravity of the Earth is 9. Ed Hitchcock. Jan 27, Explanation: As per Law of Universal Gravitation the force of attraction between two bodies is directly proportional to the product of masses of the two bodies.

Related questions Does gravitational force get weaker with distance? How strong is gravitational force? How does cosmic background radiation change the universe? It is known as the acceleration of gravity - the acceleration for any object moving under the sole influence of gravity. A matter of fact, this quantity known as the acceleration of gravity is such an important quantity that physicists have a special symbol to denote it - the symbol g.

The numerical value for the acceleration of gravity is most accurately known as 9. There are slight variations in this numerical value to the second decimal place that are dependent primarily upon on altitude. By so doing, we will be able to better focus on the conceptual nature of physics without too much of a sacrifice in numerical accuracy.

Recall from an earlier lesson that acceleration is the rate at which an object changes its velocity. It is the ratio of velocity change to time between any two points in an object's path.

To accelerate at 9. If the velocity and time for a free-falling object being dropped from a position of rest were tabulated, then one would note the following pattern. Observe that the velocity-time data above reveal that the object's velocity is changing by 9. That is, the free-falling object has an acceleration of approximately 9.