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Homework Help: Waves problem

  1. Apr 22, 2012 #1
    A sine wave with a frequency of 10Hz and an amplitude of 5 units phases from zero to 2π radians in a complete cycle. How long does it take for the phase to reach a value of π radians?

    y(t) = A . sin (2.π.f.t + φ)

    0.1 = 5 x sin (2x∏x10x time + 3.14)

    time = 0.038 seconds

    But the answer suppose to be 0.005 and I got 0.038.

    Thank you!
     
  2. jcsd
  3. Apr 22, 2012 #2
    anyone???
     
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