A 7.50-kg turkey standing at the top of

Question

Ishpatina Ridge, at 693 m the highest point in
Ontario, weighs 73.5 N [down]. Calculate the
magnitude of the gravitational field strength at
this location.
answer is 9.8N/Kg

Answer 1

the 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.

E(g) = F/m = G•m •M/m(R+h)²=
= G•M/(R+h)²=
=6.67•10⁻¹¹•M =
5.97•10²⁴/(6.378•10⁶ +693)² =
=9.8 N/kg