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Kinematics of a particle - Curvilinear motion of cylindrical components

  1. May 5, 2010 #1
    hi guys,

    I have a question about the names of parts in the formula for accelerating a partical using polar coordinates.

    The formula for acceleration is:

    a=arur+a[tex]\theta[/tex]u[tex]\theta[/tex]

    where:
    ar=r"-r[tex]\theta[/tex]'2
    a[tex]\theta[/tex]=r[tex]\theta[/tex]"+2r'[tex]\theta[/tex]'

    In these two equations
    r" occurs due to exdending or shortening the arm
    r[tex]\theta[/tex]'2 occurs due to the centrifugal force
    r[tex]\theta[/tex]" occurs due to the angular acceleration
    but how is this term called? : 2r'[tex]\theta[/tex]'
     
  2. jcsd
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