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Thread: Best way to express working for ratio questions

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    Student Karldahemster's Avatar
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    Best way to express working for ratio questions

    I am able to solve the questions involving ratios, such as;

    Two moons have masses M and 4m and radii R and 4R respectively. Compare their acceleration due to gravity.

    How best should I set out my working for these?

    Thanks
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    I love trials pikachu975's Avatar
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    Re: Best way to express working for ratio questions

    Quote Originally Posted by Karldahemster View Post
    I am able to solve the questions involving ratios, such as;

    Two moons have masses M and 4m and radii R and 4R respectively. Compare their acceleration due to gravity.

    How best should I set out my working for these?

    Thanks
    I think you just gotta write, for example:

    Fe/ge = Fm/gm if you're using a ratio involving F = mg or you can even just say me = mj (e is Earth and j is Jupiter - subscripts) then Fe/ge = Fj/gj and go from there
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    Student Karldahemster's Avatar
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    Re: Best way to express working for ratio questions

    Quote Originally Posted by pikachu975 View Post
    I think you just gotta write, for example:

    Fe/ge = Fm/gm if you're using a ratio involving F = mg or you can even just say me = mj (e is Earth and j is Jupiter - subscripts) then Fe/ge = Fj/gj and go from there
    Thanks
    HSC 2018

    English Adv | MX1 | MX2 | Phys | Chem | Eco

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