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Physics, Astronomy & Cosmology / Would a planet larger than Earth be able to have the same gravitational force?
« on: 11/04/2015 00:50:33 »
So I started talking to someone at a party about whether this was possible or not, but I would like to know. Is it possible for a planet, say 4x the size of Earth, to have the same gravitational effect on people and animals on the surface of the planet? If so how? I do not know much about this but what if the planet was hollow? Or had a majority of the planet hollow? Or what if some of the planet was made primarily out of a different material than Earth? Is this completely impossible or just implausible?
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