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!

Average net force

  1. Nov 21, 2008 #1
    This is just a general question- Given a beginning and ending velocity, and distance that the object travels, would the average net force be the change in kinetic energy divided by the distance? (Using energy methods only)
    I think I've also seen avg force calculated with momentum...
  2. jcsd
  3. Nov 21, 2008 #2
    There are (at least) two sorts of average you can take:

    If you want to calculate a force averaged over *distance*, you can use the change in kinetic energy, divided by distance: Work =\delta E=F_average * d

    If you want to calculate an average over *time*, then that would be given by the change in momentum, divided by the total time: impulse=\delta P= F_average * T
  4. Nov 21, 2008 #3
    so Kef-Kei/d right?
  5. Nov 21, 2008 #4
  6. Nov 21, 2008 #5
    ah i see- "average" is really misleading b/c u dont add the two numbers..
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Average net force
  1. Average Net Force (Replies: 7)

  2. Average net force (Replies: 1)