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I Need Help to Understand This

I have never seen this expression before; Confused:

Attachment 22916

Can somebody explain the above formula to me, especially the area where the two (2's) are sitting above each other.(Doh)

The original formula can be found on this page;

Orbital speed - Wikipedia, the free encyclopedia

Re: I Need Help to Understand This

Quote:

Originally Posted by

**davidsf**

$\displaystyle \displaystyle m_1$ and $\displaystyle \displaystyle m_2$ are either constants or variables. I assume the m stands for mass, so $\displaystyle \displaystyle m_1$ would mean "first mass" and $\displaystyle \displaystyle m_2$ would mean "second mass".

Now $\displaystyle \displaystyle m_2^2$ is the same as $\displaystyle \displaystyle \left(m_2\right)^2$

Re: I Need Help to Understand This

Does (m2) refer to the variable m2 for example does it simply mean (second mass)^2

Re: I Need Help to Understand This

Quote:

Originally Posted by

**davidsf** Does (m2) refer to the variable m2 for example does it simply mean (mass2)^2

Yes.

Re: I Need Help to Understand This

That's all I needed to know. Thank you Prove It