Solution:
Inside the earth, \(g\) increases linearly from center to surface: \(g(r) \propto r\). Outside, it decreases: \(g(r) \propto 1/r^2\). Thus, \(g\) is maximum at the surface of the earth.
One goes from the centre of the earth to an altitude half the radius of the earth, where will the \(g\) be greatest ?
Leave a Reply