(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

How come it is said that attractive forces such as gravitational force have negative sign? And how come the sign is ignored in the case of gravitational force? And also, how come gravitational potential energy carries a negative sign? Is it because the displacement of the object is always below the reference point which is infinity?

2. Relevant equations

3. The attempt at a solution

My notes state that the negative sign is omitted because gravitational repulsion doesnot exist. I don't exactly comprehend that. What is meant by gravitational repulsion?

Thanks for any help given to help me clarify my doubts. =)

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# Homework Help: Gravitational Force(Why the negative sign?)

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