a 200 kg rock lies on the surface of a planet. the acceleration due to gravity on the surface of the planet is 6,0. calculate the mass of t

Question

a 200 kg rock lies on the surface of a planet. the acceleration due to gravity on the surface of the planet is 6,0. calculate the mass of the planet if it’s radius is 700km​

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Thiên Thanh 3 years 2021-09-03T22:00:46+00:00 1 Answers 73 views 0

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  1. thucuc
    0
    2021-09-03T22:02:15+00:00
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    Answer:

    4.41 × 10²² kg

    Explanation:

    Let the mass of planet be M, rock be m

    Therefore,

    net \: force \: on \: rock \: = weight \\ (200)(6) = \frac{(6.67 \times 10 {}^{ - 11})(200)(m) }{(700000) {}^{2} } \\ m = 4.41 \times 10 {}^{22} \: kg

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