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: Referrence of laws in my experiment

  1. Apr 25, 2009 #1
    I've got a SAC which is my own experiment. The experiment is measure the Sag in a supported beam (A.K.A putting weights on top of a flexible ruler supported at both ends and measuring how much the ruler bent)

    Since i have to make referrence to law's and elaborate how the force affects the ruler, which of these following laws/methods should i make a mention of?

    - Hooke's law (Not sure)
    - Newton's third law (I think yes)
    - Elastic potential energy (?)

    here is a few pictures showing my experiment. Hopefully you can all grasp the visual concept of my experiment from these.
    http://img14.imageshack.us/img14/3015/variableweight.jpg [Broken]

    and another:

    http://img14.imageshack.us/img14/7941/variablelength.jpg [Broken]

    Anything else i should make mention of?
    any help would be greatly appreciated.
    Last edited by a moderator: May 4, 2017
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted