A Space Station Is Designed in the Shape of a Large

Multiple Choice

A space station is designed in the shape of a large, hollow donut that is uniformly rotating. The outer radius of the station is 350 m. With what period must the station rotate so that a person sitting on the outer wall experiences "artificial gravity," i.e. an acceleration of 9.8 m/s²?

A) 230 s
B) 170 s
C) 110 s
D) 76 s
E) 38 s