They dropped anchor from the boat on the lake. Waves started from the place of throwing. A man on the shore noticed

They dropped anchor from the boat on the lake. Waves started from the place of throwing. A man on the shore noticed that the wave reached him after 40 s, and the distance between the adjacent humps of waves was 1 m. In 5 s, there were 40 bursts on the shore. At what distance from the coast did you drop anchor?

Formula-S = V * t
Decision:
1) V – speed – (40/5 = 8 meters / second)
2) t – time – (40 seconds)
S = 8 * 40 = 320 meters.
Answer: S = 320 meters.