SOLUTION: a rowing team can travel 3000 m upstream in 50 sec. The team knows they row 80 m/s in still water. a. what is the speed of the river current? b. how long does it take the team

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Question 242009: a rowing team can travel 3000 m upstream in 50 sec. The team knows they row 80 m/s in still water.
a. what is the speed of the river current?
b. how long does it take the team to travel downstream?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
a. 3000m in 50 sec is 60 m/s (3000/50); so the river is flowing at 20 m/s (80 - 60)

b. their downstream speed is 100 m/s (80 + 20); so it takes them 30 sec (3000 / 100) to travel downstream



just a comment ___ 80 m/s is about 180 miles per hour
___ perhaps the seconds in this problem should be minutes?