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Inematics of particles, motion on a friction less rod, springs

  1. Nov 30, 2011 #1
    1. The problem statement, all variables and given/known data

    a 12-lb collar is attached to a spring anchored at point C and can slide on a friction-less rod forming a 30 degree angle with the vertical. The spring has constant k and is unstretched when the collar is at A. Knowing that the collar is releasted from rest at A, develop an equation to determine the velocity of the collar at point B for a given value of k such f(k)=v

    2. Relevant equations
    f=ma
    w=mg

    3. The attempt at a solution
    not a clue. i am new at physics forums...is no attemped solution OK? apologies in advance.
     
  2. jcsd
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