Answer :
According to the given statement the swimmer will travel 21.53 m from her starting point.
What are upstream ?
One of the variations is when the boat goes downstream in the same direction as the river. We refer to this as the upstream motion. However, we refer to the motion of a boat traveling upstream when it's doing inside the opposite direction as a stream or river.
Briefing:
Speed of swimmer in still water = Speed along river's width = 1.20 m/s
Thus, the swimmer's time to cross the river was 47/1.20, or 39.16 seconds.
Consequently, the swimmer is moving at 0.55 m/s downstream for 39.16 seconds.
During that period, the distance was equal to 0.55 * 39.16, or 21.53 m.
As a result, the swimmer will travel 21.53 m from her starting point.
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The complete question is -
A swimmer is capable of swimming 1.20 m/s in still water, if she is to arrive at a point directly across the stream of a 47- m -wide river whose current is 0.50 m/s, how far downstream (from a point opposite her starting point) will she land?
