Question 1045059
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Hey,


At this site we help students solving their math problems.


We assume that the students come to this site just having some preliminary knowledge.


It is not our task to educate the students from the zero level.


It is their teachers task and the task of their textbooks. And the students themselves. 


Your level of knowledge is not enough to discuss these issues.


Therefore, my best advise is: take a textbook in Physics and learn from it.
Or learn from the Internet.
If you want to learn this subject.


And the last note is: G is not a gravitational force.
It is gravitational acceleration (sometimes called as "free fall acceleration").