Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Heavier objects fall faster myth or fact?

  1. Dec 11, 2005 #1
    Heavier objects fall faster....myth or fact?

    (I'm not too good with history so correct me if I'm wrong.)

    pre-gallileo this is what people generally assumed. Gallileo actually did some experiments to show that all objects fall at the same acceleration. Then newton provided the math and it was realized that wind resistance was that factor that made everyone think heavier objects fall faster. And now it seems everyone says that if you neglect wind resistance that every object regardless of mass, will fall at the same acceleration. But is this technically false?

    The earth pulls everything at the exact same acceleration (assuming the distance from the earths core is the same). But the object being dropped is also pulling on the earth. So wouldn't a heavier object cause the earth to accelerate towards it more than a lighter object? Which would mean that a heavier object would converge with the earth sooner? The difference in time would be extremely extremely small but that doesn't make it less true.
  2. jcsd
  3. Dec 11, 2005 #2

    Doc Al

    User Avatar

    Staff: Mentor

  4. Dec 11, 2005 #3
    thanks doc al
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?