The law of universal gravitation and Satellites and astronauts: Putting it all toget...

The law of universal gravitation and Satellites and astronauts: Putting it all together

A spaceship in outer space has a doughnut shape with 500-m outer radius. The inhabitants stand with their heads toward the center and their feet on an outside rim (see Figure Q4.21). Over what time interval would the spaceship have to complete one rotation on its axis to make a bathroom scale have the same reading for the person in space as when on Earth’s surface?