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Question: andnbsptwo swimmers are crossing the river at an identical speed...

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Two swimmers are crossing the river at an identical speed relative to the water. The river speed is smaller than the swimmers' speed. The first swimmer goes straight, and in this case, the swimmer's trajectory is deviated by the river flow. The second swimmer chooses to swim at an angle in order to arrive at a point exactly in front of the start point.

 

a) Draw a vector diagram of this situation.

 

b) Which swimmer will arrive first on the other shore of the river? Justify the answer. 

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