If I drop 2 objects on earth, with different masses which one hits the ground first? (let one of the object have mass twice as that of the earth)

Question

If I drop 2 objects on earth, with different masses which one hits the ground first?     (let one of the object have mass twice as that of the earth)

ujjwal · Answer

Galileo performed this experiment centuries earlier and he found that two objects strike the ground at same moment whatever be their masses..  Acceleration due to gravity is independent of mass of the body..

anonymous · Answer

Air resistance should be the only acceleration different, but may also be the same, for each.