you weigh 120 lb at the sidewalk outside the world trade center. Suppose you ride from this level to the top of one of its 1350 ft tower. how much less would you weigh

Answer 1

W₀=mg
g=GM/R².
W=mg´,
g=GM/(R+h)²
ΔW= W₀-W
gravitational constant G =6.67•10⁻¹¹ N•m²/kg²,

Earth’s mass is M = 5.97•10²⁴kg,
Earth’s radius is R = 6.378•10⁶ m.

Answer 2

1 lb

Answer 3

12