Does the 42 minutes through a frictionless hole in the earth mean going through to the other side? Is that accounting for the deceleration when you're coming back up? Is the next sentence, regarding "little chance you'll fall for more than a few minutes from any part of the atmosphere with breathable air", still talking about falling through the earth or is it now talking about falling from the sky onto the surface of the planet?
Does the 42 minutes through a frictionless hole in the earth mean going through to the other side? Is that accounting for the deceleration when you're coming back up? Is the next sentence, regarding "little chance you'll fall for more than a few minutes from any part of the atmosphere with breathable air", still talking about falling through the earth or is it now talking about falling from the sky onto the surface of the planet?