People in the future may well live inside a rotating space structure that is more than 2 km in diameter. inside the structure, people on the inside of the outer edge will experience 1 g while people halfway to the axis will experience ) 0 gb) 1/2 gc) 1/4 g

b) 1/2 g

Explanation:

As in the rotating space structure the artificial gravity or rotation gravity is produced by the help of centripetal force. Centripetal force in space station is provided by the hulk of space structure. So the gravity experienced by the people will be actually the centrifugal force. In comparison with the real gravity, which pulls towards the center, The centrifugal force pulls radially outward. So if a person is experiencing 1g inside of outer edge then the people halfway from outer edge will experience 1/2g.  

because growing process had stoped after 4-5 year