Answer:
The waves are traveling in a speed of
v=1.20 m/s
Explanation:
The fisherman see a wave at 6m apart so that's the wavelength
[tex]L=6m[/tex]
Now the period is the time between two successive waves so
[tex]t=2*2.5s=5s[/tex]
The velocity of the waves is describe by:
[tex]v=f*L[/tex]
[tex]f=\frac{1}{t}=\frac{1}{5s}=20s^{-1}[/tex]
[tex]v=0.20s^{-1}*6m[/tex]
[tex]v=1.20 \frac{m}{s}[/tex]
