The planet Mars has two moons, if one of them has a period $7$ hours, $30$ minutes and an orbital radius of $9 . 0 \times {10}^{3}km .$ Find the mass of Mars.
\left\{\right) Given \left\dfrac{4{\pi}^{2}}{G} = 6 \times {10}^{11}{N}^{- 1}{m}^{- 2}{kg}^{2}\right\}

Question

The planet Mars has two moons, if one of them has a period

7

hours,

30

minutes and an orbital radius of

9 . 0 \times {10}^{3}km .

Find the mass of Mars.
\left\{\right) Given \left\dfrac{4{\pi}^{2}}{G} = 6 \times {10}^{11}{N}^{- 1}{m}^{- 2}{kg}^{2}\right\}

Quantrex Academy · Accepted Answer

Correct answer: D. 6 . 00 × 10 ^ 23 kg

Option D is correct. T ^ 2 = 4 π ^ 2 GM · r ^ 3 M = 4 π ^ 2 G · r ^ 3 T ^ 2 By putting values M = 6 × 10 ^ 23

The planet Mars has two moons, if one of them has a period 7 hours,...