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Homework Help: Two Masses connected by Spring, Falling

  1. Oct 13, 2007 #1
    Hi, perhaps a similar thread already exists, but I was not able to find it...
    1. The problem statement, all variables and given/known data
    Two masses m_1 and m_2 are connected by a spring with spring constant D. This setup is attached to the ceiling by a rope. We cut the rope. What happens?

    2. Relevant equations
    The center of mass is given by z0 = (z1*m1 + z2 * m2) / (m1 + m2)
    The acceleration right after cutting the rope of the upper mass m1 is given by
    a1 = (1 + m2/m1)*g
    And the acceleration of m2:
    a2 = 0
    How are the equations of motion in our center of mass system?

    3. The attempt at a solution
    Find the equations of motion.
    Find the frequency of harmonic oscillation.
  2. jcsd
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