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Homework Help: Motion without damping

  1. Sep 9, 2007 #1
    1. The problem statement, all variables and given/known data

    The Archimedian principle stetes that the bouyancy force equals the weight of the water displaced by the body (partly or totally submerged). A cylindrical buoy of diameter 60cm is floating in water tiwh its axis vertical. When dupressed downward in the water and released, it vibrates with period 2 sec. Ehat is its weight?

    2. The attempt at a solution

    The period is 2*pi/w, so that w=pi. But what then?
  2. jcsd
  3. Sep 9, 2007 #2

    matt grime

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    Model the system. You know the forces acting in it (a function of displacement) so you have a differential equation to solve.
  4. Sep 9, 2007 #3


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    Dearly Missed

    This must be the first time I've seen m g dabbling in physics and diff eqs..
    I hope he won't neglect the pure math section. :smile:
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