Artificial gravity is a must for any space station if humans are to live there for any extended length of time. Without artificial gravity, human growth is stunted and biological functions breakdown.

An effective way to make artificial gravity is through the use of a rotating enclosed cylinder, as shown in the figure. Humans walk on the inside of the outer edge of the cylinder, which has a diameter of?=3335mthat is large enough such that its curvature is not readily noticeable to the inhabitants.

Once the space station is rotating at the necessary angular speed?to create artificial gravity of1?, how many minutes would it take the space station to make onerevolution?

revolution:________minutes

D