Consider the following statements: The acceleration due to earth’s gravity decreases if1. We go down from the surface of the earth towards its centre.2. We go up from the surface of the earth.3. We go from the equator towards the pole.4. The rotational speed of the earth is increased. Which of these statements are correct?

Mechanics is the area of mathematics and physics concerned with the relationships between force, matter, and motion among physical objects. Forces applied to objects result in displacements or changes of an object's position relative to its environment.