Douglas rows a boat upstream (against the flow of the river) for 45 minutes. He turns around and rows downstream (with the flow of the river) to his starting pointing, taking only 30 minutes to return. Douglas' speed upstream is 3 kilometres per hour less than his speed downstream. What is his speed when rowing the boat upstream? Oa. S km/hr Ob 9 km/hr Oc 6 km/hr Od. 7 km/hr Oe 8 km/hr
Douglas rows a boat upstream (against the flow of the river) for 45 minutes. He turns around and rows downstream (with the flow of the river) to his starting pointing, taking only 30 minutes to return. Douglas' speed upstream is 3 kilometres per hour less than his speed downstream. What is his speed when rowing the boat upstream? Oa. S km/hr Ob 9 km/hr Oc 6 km/hr Od. 7 km/hr Oe 8 km/hr
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter4: Motion In Two And Three Dimensions
Section: Chapter Questions
Problem 76P: A small plane flies at 200 km/h in still air. If the wind blows directly out of the west at 50 km/h,...
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![Douglas rows a boat upstream (against the flow of the river) for 45 minutes. He turns around and rows downistream (with the flow of the river) to his
starting pointing, taking only 30 minutes to return. Douglas' speed upstream is 3 kilometres per hour less than his speed downstream. What is his
speed when rowing the boat upstream?
O a. 5 km/hr
Ob. 9 km/hr
Oc 6 km/hr
Od. 7 km/hr
O e 8 km/hr](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3835a2e1-8dd9-4827-9acb-e3c99054933a%2Fefb5fb62-3868-4a4e-87d9-f3c094b96f38%2F7uqfk3_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Douglas rows a boat upstream (against the flow of the river) for 45 minutes. He turns around and rows downistream (with the flow of the river) to his
starting pointing, taking only 30 minutes to return. Douglas' speed upstream is 3 kilometres per hour less than his speed downstream. What is his
speed when rowing the boat upstream?
O a. 5 km/hr
Ob. 9 km/hr
Oc 6 km/hr
Od. 7 km/hr
O e 8 km/hr
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