A seagull flies at a velocity of 8.00 m/s straight into the wind. It takes the bird 24.0 min to travel 5.00 km relative to Earth.
What is the speed of the wind?
If the bird turns around and flies with the wind, how long, in minutes, will it take to return 5.00 km?
A ship sets sail from Rotterdam, The Netherlands, heading due north at 8.00 m/s relative to the water. The local ocean current is 2.50 m/s in a direction north of east. What is the speed of the ship relative to Earth?
A ship sailing in the Gulf Stream is heading west of north at a speed of 4.00 m/s relative to the water. Its velocity relative to Earth is 4.80 m/s, west of north. What is the velocity of the Gulf Stream? (The velocity obtained is typical for the Gulf Stream, a few hundred kilometers off the east coast of the United States.)