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Math Help - I Need Help to Understand This

  1. #1
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    I Need Help to Understand This

    I have never seen this expression before; Confused:

    I Need Help to Understand This-gm.png

    Can somebody explain the above formula to me, especially the area where the two (2's) are sitting above each other.
    The original formula can be found on this page;
    Orbital speed - Wikipedia, the free encyclopedia
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  2. #2
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    Re: I Need Help to Understand This

    Quote Originally Posted by davidsf View Post
    I have never seen this expression before; Confused:

    Click image for larger version. 

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    Can somebody explain the above formula to me, especially the area where the two (2's) are sitting above each other.
    The original formula can be found on this page;
    Orbital speed - Wikipedia, the free encyclopedia
    \displaystyle m_1 and \displaystyle m_2 are either constants or variables. I assume the m stands for mass, so \displaystyle m_1 would mean "first mass" and \displaystyle m_2 would mean "second mass".

    Now \displaystyle m_2^2 is the same as \displaystyle \left(m_2\right)^2
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  3. #3
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    Re: I Need Help to Understand This

    Does (m2) refer to the variable m2 for example does it simply mean (second mass)^2
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  4. #4
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    Re: I Need Help to Understand This

    Quote Originally Posted by davidsf View Post
    Does (m2) refer to the variable m2 for example does it simply mean (mass2)^2
    Yes.
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  5. #5
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    Re: I Need Help to Understand This

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