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Waves problem

  • Thread starter luigihs
  • Start date
86
0
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!
 
86
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anyone???
 

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