A wave propagates on the surface of the lake at a speed of 3 m / s. What is the vibration frequency

A wave propagates on the surface of the lake at a speed of 3 m / s. What is the vibration frequency of the boat if the wavelength is 3m?

Given:
u = 3 m / s (meters per second) – wave propagation speed over the lake surface;
l = 3 meters – wavelength.
It is required to determine v (Hertz) – the vibration frequency of the boat on the lake.
To determine the vibration frequency of the boat, you must use the following formula:
u = l * v, from here we get that:
v = u / l = 3/3 = 1 Hertz.
Answer: the boat’s vibration frequency is 1 Hertz.