A stationary boat in the ocean is experiencing waves from a storm. The waves move...

The wavelength of the wave from the storm,
${\displaystyle \lambda =160m}$
The speed of the wave,
${\displaystyle v=55k\frac{m}{h}}$
The distance between a crest and the trough that is directly equal to half the wavelength of the wave.
${\displaystyle d=\frac{\lambda }{2}}$
${\displaystyle =\frac{160m}{2}}$
${\displaystyle =80m}$
The expression for the speed of the wave,
${\displaystyle v=\frac{d}{t}}$
The time taken
${\displaystyle t=\frac{d}{v}}$
Substitute the values,
${\displaystyle t=\frac{80}{55k\frac{m}{h}}\times \frac{1km}{1000m}\times \frac{3600s}{1h}}$
${\displaystyle =5.24s}$