A boat is rocked by waves of speed 30ms-1 whose successive crest are 10m apart....

A boat is rocked by waves of speed 30ms^-1 whose successive crest are 10m apart. Calculate the rate at which the boat recieves the waves

The correct answer is: C

F = \(\frac{v}{\lambda} = \frac{30}{10} = 3s^{-1}\)