The gravity of an object acts on its center of gravity. Is that right? Why

The gravity of an object acts on its center of gravity. Is that right? Why


That's right



The gravity on the object is imposed by the earth, and the object is only affected by gravity at the center of gravity
Is that right or wrong?
Why?


I don't know whether you are a junior high school student or a senior high school student. The gravity of an object given by the earth is a component of the earth's gravity (the other part provides the centripetal acceleration of the object in circular motion). The gravity of an object mentioned in the middle school is an equivalent concept, that is, the whole object is