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anonymous

  • one year ago

A newly discovered planet has a mass 1.5 times compared to that of the earth, and its diameter is 3 times compared to earth. What is the gravitational acceleration on this planet?

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  1. welshfella
    • one year ago
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    now this is a formula i have definitely forgotten

  2. anonymous
    • one year ago
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    Fg = Gm1m2/r^2

  3. anonymous
    • one year ago
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    or Fg = Gm/r^2

  4. welshfella
    • one year ago
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    oh ok so n1 amd m2 are the masses and r^2 = radius?

  5. anonymous
    • one year ago
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    yes ;)

  6. welshfella
    • one year ago
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    G is the acceleration due to gravity?

  7. anonymous
    • one year ago
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    G = 6.67 X10^-11

  8. anonymous
    • one year ago
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    yes :)

  9. welshfella
    • one year ago
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    I'm not entirely clear about it and i haven't the time to look it up . sorry

  10. anonymous
    • one year ago
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    oh it's okay thank you :)

  11. anonymous
    • one year ago
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    can you help me @ganeshie8 :)

  12. IrishBoy123
    • one year ago
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    http://openstudy.com/study#/updates/55bd3e54e4b01850ec7d74c7

  13. anonymous
    • one year ago
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    \[mg=G \frac{Mm}{r^2}\] \[g=G \frac{M}{r^2}\]\[g \alpha \frac{M}{r^2}\] \[\frac{g'}{g}=\frac{\frac{M'}{r'^{2}}}{\frac{M}{r^2}}\]\[g'=g \frac{M'r^{2}}{Mr'^{2}}\] M'=Mars of new planet r'=radius of new planet M=mass of earth r=radius of earth Also given \[M'=1.5M\] for the radius also u can calculate

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