Quiz – Finding the Distance Downstream When Crossing a River Physics 12Quizzes based on the BC Physics 12 curriculum. Finding the Distance Downstream When Crossing a River 1 / 1 A hiker travelling South comes to a river that flows East. The hiker swims straight South across the river. If they swim at a rate of 0.55 m/s and the river has a speed of 0.35 m/s and a width of 18 m, how far downstream do they end up? Answer in the form '1.2 m'. Check Quiz(PDF) Questions(PDF) Your score is 0% Try new quiz By Wordpress Quiz plugin