posted by cory .
Calculate Earth’s gravitational force on the Shuttle astronauts while orbiting at an altitude of 220 miles (or 354 km) above Earth’s surface.
LOL @ AAD...:)
Answering the question in 2016, you should divide the gravitational force in orbit by gravitational force on earth's surface. Which is the radius of earth squared divided by the orbital radius squared and then multiply it by 100. Problem solved.