ajo asked in Science & MathematicsPhysics · 5 months ago

Physics equation manipulation question!?

How would the formula "Fg=(GMm/r^2)" be written so there is a ratio between Fg and r?

Having some trouble with my homework. Thanks for your time.

3 Answers

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  • 5 months ago
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    Fg / r = GMm/r^3

    Which is not particularly useful if you ask me, are you sure that's what you mean?

  • 5 months ago

    Fg = G*M*m/r^2

    here r is the distance between the centers of the two bodies of masses M,m

    divide with r on both sides

    Fg/r = G*M*m/(r^2*r)

    Fg/r = G*M*m/r^3

  • 5 months ago

    Fg = GMm/r²

    Fg/r = GMm/r³

    You can't get the ratio Fg/r without having the r³ term.

    Are you sure you have the question correct?

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