Question

A boat at anchor is rocked by wave whose compression is 100 m apart. The
wave velocity of the moving crest is 20m/s. whatis the frequency of rocking
of the boat?

Answer 1

Answer:

0.2 Hz

Explanation:

The distance between two consecutive crest = 100m.

This means the wavelength of the wave = 100m

Velocity of the wave = 20m/s

Velocity = frequency * wavelength

   20 = frequency * 100

Therefore,frequency  = 20/100

                                    =0.2 Hz

Frequency of the wave = frequency of the boat = 0.2 Hz

Hope it helps!