The acceleration due to gravity at a mine 32 km below Earth’s surface is 0.5 % less…

PHYSICS · Subjective · CBSE · Physics · Gravitation · Gravitation

Problem

The acceleration due to gravity at a mine 32 km below Earth’s surface is 0.5 % less than its surface value. Determine the altitude at which

g

would have the same 0.5 % decrease. (Earth’s radius

R = 6.4 \times 10^{6}\,\text{m}