Asked by Anonymous
A river has a steady speed of 0.500 m/s.A student swims upstream a distane of 1.00 km and swims back to the starting point. If the student can swim at a speed of 1.20 m/s in still water, how long does the trip take? How much time is required in still water for the same length swim? How muh time is required in still water for the same length swim?.
Answers
Answered by
Damon
speed up = 1.2 - .5 = .7
speed down = 1.2 + .5 = 1.7
time up = 1000/.7 seconds
time down = 1000/1.7 seconds
add those times
in still water 2000/1.2 seconds
speed down = 1.2 + .5 = 1.7
time up = 1000/.7 seconds
time down = 1000/1.7 seconds
add those times
in still water 2000/1.2 seconds
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