The speed of propagation of waves shaking the boat is 1.5 meters per second.

The speed of propagation of waves shaking the boat is 1.5 meters per second. Determine the period of vibration of the boat if the wavelength is 6 meters.

Since the wavelength is 6 meters, the wave propagates over this distance in a time equal to the oscillation period of this disturbance. That is, S = v • T. Since the speed of propagation of waves shaking the boat is 1.5 meters per second, in order to determine the period of oscillation of the boat, it is necessary to divide the wavelength by the speed of propagation of the wave that rocks the boat, that is, T = S: v, T = 6 m: 1.5 m / s = 4 s.
Answer: the period of oscillation of the boat T = 4 seconds.