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: How much work is being done?

  1. Sep 20, 2012 #1
    A farmhand pushes a 26-kg bale of hay 3.9 meters across the floor of a barn. If she exerts a horizontal force of 88N on the hay, how much work has she done?

    My Answer:
    W=88N x 3.9m
    = 343.2 Joules

    My question: Is this correct or do I have to do something with the mass of 26-kg?
    Thank you!
  2. jcsd
  3. Sep 20, 2012 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Perfectly correct. The mass is irrelevant. (But maybe the question has another part.)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook