Quiz – Finding the Swim Direction When Crossing a River Physics 12Quizzes based on the BC Physics 12 curriculum. Finding the Swim Direction When Crossing a River 1 / 1 A hiker travelling South comes to a river that flows East. The hiker wants to swim straight South across the river. If they can swim at a rate of 0.90 m/s and the river has a speed of 0.50 m/s, what direction should they swim? Answer in the form '28 N of W'. Check Quiz(PDF) Questions(PDF) Your score is 0% Try new quiz By Wordpress Quiz plugin