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!

Two spring one mass

  1. Feb 16, 2017 #1
    Quick question thats causing alot of headaches at the moment.

    Ive got two horizontal springs with a mass in the middle.
    The springs are preloaded.
    I get that the springs are in parallel and the effective stiffness is the sum of the stiffnessess.

    If the springs are preloaded, is the preload effectively cancelled because the springs are opposing each other? I.e. if i apply a force to the mass, does it move or does the force need to overcome the spring preload?

  2. jcsd
  3. Feb 16, 2017 #2


    User Avatar
    Science Advisor

    Yes, the preloads cancel. The mass will move immediately you apply a force.
  4. Feb 16, 2017 #3


    User Avatar
    Science Advisor
    Homework Helper
    2017 Award

    Make a drawing, indicate all the forces. Is the initial state at equilibrium ?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted