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A swimmer can swim with 5m/s in still water. He wants to cross a river having width 200m heading perpendicular to the flow. Speed of flow is uniformly increasing from 0 at side to 3m/s at mid from both side of the river. Then the time taken by the swimmer to cross the river will be ? (Ans. 40 sec)

A swimmer can swim with 5m/s in still water. He wants to cross a river having width 200m heading perpendicular to the flow. Speed of flow is uniformly increasing from 0 at side to 3m/s at mid from both side of the river. Then the time taken by the swimmer to cross the river will be ? (Ans. 40 sec)

Grade:12th pass

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