By How Many Newtons Does the Weight of a 100-Kg

Multiple Choice

By how many newtons does the weight of a 100-kg person change when he goes from sea level to an altitude of 5.0 km if we neglect the earth's rotational effects? (The mean radius of the Earth is 6.38 × 10⁶ m, G = 6.67 × 10^-11 N ∙ m²/kg².)

A) -0.60 N
B) -1.5 N
C) -2.6 N
D) -3.6 N
E) -5.2 N