Physics
Physics, 29.01.2020 17:42, kayranicole1

Aswimmer can swim at a velocity v in still water. she swims upstream a distance d against the current, which has a velocity u. she then swims back to her starting point. a) how long does it take her to make the round-trip? b) what is her average speed for the trip? c) for what value of u u is her average speed the greatest?

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Aswimmer can swim at a velocity v in still water. she swims upstream a distance d against the curren...

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