A rock slide splashes into the ocean and creates a wave. This water wave has a period of 1.2 seconds, and a wavelength of 14 meters, how long will it take for this wave to travel to a shore 3.3 km away?

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Answer 1 · 2017-07-23T07:03:26

The time is $=282.9s$

The period is $=Ts$

The frequency is $f=1/T=1/1.2=0.83Hz$

The wavelength is $lambda=14m$

The speed of the wave is

$v=lambda/T=lambdaf=14*0.83=11.67ms^-1$

The distance is $d=3300m$

The time is

$t=d/v=3300/11.67=282.9s$