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
a) 0 g
b) 1/2 g
c) 1/4 g

option B

Explanation:

given,

diameter of the rotating space = 2 Km

Force exerted at the edge of the space = 1 g

force experienced at the half way = ?

As the object is rotating in the circular part

Force is equal to centripetal acceleration.

at the edge

g = ω² r

ω is the angular velocity of the particle

r is the radius.

now, acceleration at the half way

g' = ω² r'

People at the halfway experience g/2

hence, the correct answer is option B

elctricity and magnet is conversion to it