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Homework Help: Solving For A Variable

  1. Sep 9, 2007 #1
    1. The problem statement, all variables and given/known data

    Solve for m1: f= Gm1m2 / r squared

    3. The attempt at a solution

    How do you solve this?
  2. jcsd
  3. Sep 9, 2007 #2
    where is your attempt?

    work must be shown b4 we can help, thanks!
  4. Sep 9, 2007 #3
    I have no idea how to solve it.
  5. Sep 9, 2007 #4
    here's a hint: Gm1m2 is simply G times m1 times m2

    now what would your steps be?
  6. Sep 9, 2007 #5


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    Homework Helper
    Education Advisor
    Gold Member

    Are you kidding? This is very simple algebra. Do you know that for any real numbers a and k, both of them not equal to zero, a*(1/k)*k=a ?

    You want m1, but you have it on the right-hand side being multiplied by Gm2/(r^2)

    (the digits shown in your equation must be assumed as subscripts; if we use TEX or LaTex, we could show that more clearly)
  7. Sep 9, 2007 #6
    Or by using these tags
    - Subscript
    - Superscript

    The corresponding end tags have a forward slash (/) in front of sub and sup.

    Examples: m1 m2
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