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A boat floats up and down with the time period of two seconds as the wave passes under it. What is the frequency ?

A boat floats up and down with the time period of two seconds as the wave passes under it. What is the frequency ? class=

Verified Answer :

AL2006

a).  It takes 2 seconds to happen one time.
So it happens 1/2 of a time per second.
That's a frequency of  1/2 Hertz.

b).  Wave speed = (frequency) x (wavelength)

                         =  (0.5 Hz)  x  (6 meters)

                         =        3 meters/sec

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