Two Canoes Are 10 M Apart on a Lake

Multiple Choice

Two canoes are 10 m apart on a lake. Each bobs up and down with a period of 8.0 seconds. When one canoe is at its highest point, the other canoe is at its lowest point. Both canoes are always within a single cycle of the waves. Determine the speed of the waves.

A) 2.5 m/s
B) 1.3 m/s
C) 5.0 m/s
D) 0.65 m/s
E) 0.75 m/s