Hi all. I was presented today with a question that I think I know the right answer to but I just want to confirm it. Imagine that a cylinder is removed from the earth, the cylinder being inside the earth, like the height of the cylinder is the diameter of the earth. The cylinder goes right through the earth. (sorry for my crappy description). Say if one was to jump into this, would you fall right to the centre of gravity and remain still and experience no other force, or when you arrive at the centre of gravity get torn apart by the gravitational effect of the rest of the earth. I think the first case is correct. Thanks!