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

Thought about gravity

  1. Apr 20, 2010 #1
    I had a thought before and I'm not sure if this is meaningful to ask or even possible to ask but I'd figure it's worth a shot.

    Is it meaningful to take the position derivative of acceleration due to gravity? I'd imagine, at least intuitively, this sounds like it's possible. As you move along space, the acceleration you'd experience would be greater as you approach the mass which is creating the gravitational field.

    Or is that just nothing more than taking the gradient of the gravitational field?
  2. jcsd
  3. Apr 20, 2010 #2


    User Avatar
    Science Advisor
    Homework Helper

    Hi Sagekilla! :smile:
    Yes, and that's the tidal force, that pulls water away from the Earth, or that stretches satellites.
  4. Apr 20, 2010 #3


    User Avatar

    Last edited by a moderator: Apr 25, 2017
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook