A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. It takes a time of 2.60 second for the boat to travel from its highest point to its lowest, a total distance of 0.680 meter. The fisherman sees that the wave crests are spaced a horizontal distance of 5.80 meter apart.
Calculate how fast are the waves traveling?
Determine what is the amplitude A of each wave?