If a water wave has a wavelength of 1.0 m and a frequency of 2.0 Hz, how long will the wave take to travel 20. m from a boat to the shore?

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Answer 1 · 2018-05-04T10:39:55

#color(blue)(10 " seconds")#

#"wave speed"="frequency( hertz)"xx"wavelength( metre)"#

First find the wave speed:

#"wave speed"=2*1=2ms^(-1)#

Time taken to travel 20m.

#"time"="distance"/"speed"#

#t=(20 m)/(2 m/s)#

#t=10s#

It takes 10 seconds to travel 20 metres.