3. Going Down

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Would you believe that gravity affects everything equally? In other words, everything, when dropped, falls at exactly the same speed. That’s a bit hard to believe since we know that dropping a feather and an cannon ball from the same distance and at the some time will result in the cannon reaching the ground first. The feather is slowed only by the wind resistance it encounters here on planet earth. On another planet with no air, both objects would fall with exactly the same speed.