Question

Explain how the value of g varies with altitude?

Answer 1

Answer:

Gravity changes with altitude. The gravitational force is proportional to 1/R2, where R is your distance from the center of the Earth. Here is an example: The radius of the Earth at the equator is 6400 kilometers. Let's say you were in a jet at the equator that was 40 kilometers high above the earth's surface.