Physics

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8) A man on the moon with a mass of 90 kilograms weighs 146 newtons. The radius of the moon is 1.74 x 106 meters, find the mass of the moon.

7.36 x 10^(28) kg
2.4 x 10^(10) kg

7.36 x 10^(22) kg

1.43 x 10^(4) kg
i'm unsure of how to do this as well.

  • Physics -

    146=GM*90/(1.74E6)^2

    M= 146*(1.74E6)^2 /90G

    and I get one of the answers.

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