Asked by Anne
Consider a swimmer who wants to swim directly across a river. If the speed of the current is 0.31 m/s and the swimmer's speed relative to the water is 0.57 m/s, how long will it take her to cross a river that is 13 m wide?
Answers
Answered by
anonymous
If
vave = (change of displacement)/(time elapsed)
then,
t = (change of displacement)/(average velocity)
SO,
t = (13 meters)/(0.57 m/s) = 22.8 s
vave = (change of displacement)/(time elapsed)
then,
t = (change of displacement)/(average velocity)
SO,
t = (13 meters)/(0.57 m/s) = 22.8 s
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