1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Find Gravitational Force on an object

  1. Oct 11, 2011 #1
    1. The problem statement, all variables and given/known data

    An object has a weight W when it is on the
    surface of a planet of radius R.
    What will be the gravitational force on the
    object after it has been moved to a distance
    of 4 R from the center of the planet

    2. Relevant equations

    No clue

    3. The attempt at a solution
    no clue
  2. jcsd
  3. Oct 11, 2011 #2
    Use Newton's Law of Universal Gravitation.
  4. Oct 11, 2011 #3
    oh thanks i got the answer
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook