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: What is the escape velocity for an object

  1. Dec 8, 2008 #1
    1. The problem statement, all variables and given/known data
    What is the escape velocity for an object on the surface of a 1.9x10^27kg planet of radius 7.2x10^7m?


    2. Relevant equations
    Ve = √2GM/r



    3. The attempt at a solution
    What I did was take the values for the mass and radius directly from the question then I plugged them into the above equation and the answer I got is 5.9x10^4m/s.

    I was just wondering is this correct or am going wrong somewhere because it seems like there is more to this question?
     
  2. jcsd
  3. Dec 8, 2008 #2

    turin

    User Avatar
    Homework Helper

    There's not much to this problem, is there. :)

    I would say one thing, for future reference, keep an eye on the units.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook