Physics Gravity
posted by Mike Joseph .
A projected space station consists of a circular tube that will rotate about its center (like a tubular bicycle tire) as shown in the figure . The circle formed by the tube has a diameter of about 1.1km
What must be the rotation speed (revolutions per day) if an effect equal to gravity at the surface of the Earth (1.0g is to be felt?
Please help. I do not even know where to start.

g = R w^2 = 9,8 m/s^2
R = 550 m
Solve for the angular velocity w in radians/second
Then convert that to revolutions per day.
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