A boat was traveling at 15 mph when a passenger threw an object at 10 mph in the same direction the boat was moving. A friend,
standing on the shore, observed the object moving with a speed of 25 mph. The passenger observed the object moving with a speed
of 10 mph. Why were the two observations different?
the person on the boat is moving 15mph on the boat and throws the ball 10mph. you add that together its 25mph. the other person is standing on land so their is no extra speed.
