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Physics, 23.09.2019 17:30 vbodbodlhviprw2954

Three swimmers can swim equally fast relative to the water. they have a race to see who can swim across a flowing river in the least time. swimmer a swims perpendicular to the current and lands on the opposite shore downstream, because the current has swept him in that direction. swimmer b swims upstream at angle to the current, so that when she reaches the other side, she is straight across from where she started. swimmer c swims downstream at an angle theta in an attempt to take advantage of the current. who crosses the river in the least time?

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