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Homework Help: What is the dimension of c3 in s=cs cos(c4t)

  1. Jan 22, 2010 #1
    Find the dimension for the quantity c3 in the expression s=c3 cos (c4t). Please someone help me solve this, s is a distance with unit L, t is a time with unit T and theta is an angle in radians.
  2. jcsd
  3. Jan 22, 2010 #2
    Re: Physics

    The dimensions must be the same on both sides of a valid equation.
    Left side you just have [L] Length.
    Right side: cos(anything) is dimensionless, leaving just c3.
  4. Jan 23, 2010 #3
    Re: Physics

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