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!

Work done in free space

  1. Aug 20, 2015 #1
    If we apply force on a small mass in open space, then it will cover infinite displacement. Then would the mass have infinite work done?
  2. jcsd
  3. Aug 20, 2015 #2
    The work only takes into account the distance over which the force is applied. Once the force stops acting, the work doesn't increase.
  4. Aug 20, 2015 #3


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    "Work" is energy. In your example, the energy is finite: namely the kinetic energy of the mass.
  5. Aug 21, 2015 #4
    Thanks a lot. It solved my problem clearly:smile::smile:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook