1. Not finding help here? Sign up for a free 30min 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!

Hooke's law and shm help

  1. Mar 30, 2010 #1
    hooke's law and shm help plz

    1. The problem statement, all variables and given/known data
    a 4 kg mass is placed on a spring (k = 40n/m) which hangs vertically. the mass is allowed to oscillate in shm. the maximum distance the mass travels in any one direciton is 30cm


    2. Relevant equations
    k = 40 n/m
    distance = 30 cm
    mass = 4 kg
    Fspring = -kx
    net force = Fspring-mg



    3. The attempt at a solution
    Fspring = -kx
    Fspring = -(40) (.3) = -12 (wrong answer)
     
  2. jcsd
  3. Mar 30, 2010 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Re: hooke's law and shm help plz

    What are you asked to find?
     
  4. Apr 3, 2010 #3
    Re: hooke's law and shm help plz

    o lol you're asked to find :
    a) how many meters is the spring streched?
    b) if the mass is lowered 20cm and released, what will be its period of oscillation?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Hooke's law and shm help
  1. Hooke's Law and SHM (Replies: 6)

  2. SHM and hookes law (Replies: 7)

  3. Hooke's Law / SHM (Replies: 5)

Loading...