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It took a crew 4 hours 24 min to row 8 km upstream and back again. If the rate of flow of the stream was 9 km/hr what was the rowing sped of the crew In still water?

It took a crew 4 hours 24 min to row 8 km upstream and back again. If the rate of flow of the stream was 9 km/hr what was the rowing sped of the crew In still water?

Glencoe Physics: Principles and Problems, Student Edition
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter13: State Of Matter
Section: Chapter Questions
Problem 74A
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It took a crew 4 hours 24 min to row 8 km upstream and back again. If the rate of flow of the stream was 9 km/hr what was the rowing sped of the crew In still water?
Expert Solution
Step 1

Given, 

Speed of stream =9 km/hr

Time taken = 4.4 hour

Distance = 8km upstream and back again.

We need to calculate, 

Rowing speed of crew in still water =? 

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