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Q1. A river has a steady speed of 0.50 m/s. A student swims upstream a distance of 1km and swims back to the starting point. If the student can swim at a speed of 1.2m/s in still water, how long does the trip take? How much time is necessary in still water for the same length swim? How much time is necessary in still water for the equal length swim?

Q2. A swimmer runs horizontally off a diving board with a speed of 3.58 m/s and hits the water a horizontal distance of 1.79 m from the end of the board. How high above the water was diving board?

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