3.A proposed space station consists of a circular tube which rotates about its axis, like the tubular wheel of a bicycle.See Figure 5.16. (a) Explain how this rotating space station

can simulate Earth's gravity of9.80 N/kg. (b) If the space station has a diameter of 1200 m, what period of rotation would be required for in habitan ls to experience a gravitational effect similar to that on Earth? Note that on earth, g = 9.80 N/kg.