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Homework Help: What is the resulting angular frequency of the oscillation?

  1. Nov 30, 2013 #1
    1. The problem statement, all variables and given/known data

    A 0.65-kg mass is hanging from a spring with spring constant 15 N/m. Then the mass is displaced from the equilibrium by 2 cm and let go.

    2. Relevant equations

    angular frequency:ω=2∏/T

    3. The attempt at a solution

    I found T: 2∏sqrtm/k, 2∏sqrt0.02/15N/m= 0.229429488s


    I got the answer wrong but the units are suppose to be in rad/s. I feel like 0.65kg plays a role in the equation, but dont know where to place it. Where exactly did I go wrong.
  2. jcsd
  3. Nov 30, 2013 #2


    User Avatar

    Staff: Mentor

    Take a look at the formula you used to find the period, T. What are the variables involved?

    (also, make use of parentheses to delineate the argument of a function like sqrt(...) so we can tell what you're taking the square root of )
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