Question

Calculate the percentage of Earth’s gravitational force on the ISS astronauts while orbiting at an altitude of 248 miles above Earth’s surface.
The wording of this question puzzles me because if they are in orbit they feel no gravitational force since the centripetal acceleration (v^2/R) exactly balances earth gravity.
However if you wish to separate out those two factors then use
Forbit = G m Me / Rorbit^2
Fground = G m Me Rearth^2

so 100*Forbit/Fearth
= 100 *Rearth^2/Rorbit^2

Related Questions

What is the force of gravity at 220 miles above Earth's surface? Calculate how much of a g force the... Calculate Earth’s gravitational force on the Shuttle astronauts while orbiting at an altitude of 220... Calculate the percentage of Earth’s gravitational force on the ISS astronauts while orbiting at an a... Calculate Earth's gravitational force on the ISS astronauts while orbiting at an altitude of 401.5 k...