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What is the escape speed (in km/s) from an Earth-like planet with mass 5.8e+24 kg and radius 66.0 × 105 m? Use the gravitational constant G = 6.67 × 10-11 m3 kg-1 s-2.

 Jan 25, 2021
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V(e) =Sqrt[2GM / R]

V(e) =Sqrt[(2 x 6.67 x 10^-11 x 5.8 x 10^24) / (6.6 x 10^6)]

V(e) =10,827 m/s =~10.827 km/s - escape velocity of this planet.

 Jan 25, 2021

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