Question

The equation y = 5Sin (3x -4t), where y is in millimetres, x is in metres and t is in seconds represents a wave motion. Determine the frequency of the wave

Answer 1

Solution

Compare to standard equation

$y=A\sin(kx-wt)$

So frequency

$f=\frac{w}{2\pi}\\=\frac{4}{2\times3.14}\\=0.64Hz$