The mass of the planet Mar, given the data from the question is 6.45×10²³ Kg
Data obtained from the question
- Acceleration due to gravity of Earth = 9.8 m/s²
- Acceleration due to gravity of Mar (g) = 0.38 × 9.8 = 3.724 m/s²
- Gravitational constant (G) = 6.67×10¯¹¹ Nm²/Kg²
- Radius (r) = 3400 Km = 3400 × 1000 = 3400000 m
- Mass (M) =?
How to determine the mass of Mar
g = GM / r²
Cross multiply
GM = gr²
Divide both sides by G
M = gr² / G
M = (3.724 × 3400000²) / 6.67×10¯¹¹
M = 6.45×10²³ Kg
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