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: Youngs modulus

  1. Mar 8, 2009 #1
    can any one help me with this question.....i am stuck

    data for steal wire 1.72 m long and 0.4 mm diameter

    load 10 20 30 40 50 60
    extension 0.7 1.5 2.1 2.9 3.6 4.3

    find youngs modulus???

    i have this formula E=F/A*L/AL but dont know how to use it....
  2. jcsd
  3. Mar 8, 2009 #2


    User Avatar
    Homework Helper

    Welcome to PF.

    It would help if you had the right equation:

    A is your area - they give you the diameter.

    F is your load - they give you a bunch of loads.

    L is your length - they give you the length

    ΔL is the change in length - they give you Δ's for various loads.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook