Question

Find the force a 68.5 kg person would experience while standing on the surface of mars. mars has a mass of 6.43 x 10 23 kg and a radius of 3.43 x 10 6 m from its center to the surface.

Answer 1

using F = GMm/r²
F =
[6.67×10-¹¹ × 68.5×6.43×10²³]/ {3.43×3.43×10¹²}
F = 2937.8×10¹² / 11.76×10¹²
F= 249.8N ≈ 250N