The captain of a small plane starts his journey by proceeding east. The speed of the plane with respect to still air is 160 km/h. A sudden north wind starts to blow at a constant speed of 71.0 km/h. As seen by people on the ground, what is the angle made between the direction of motion of the plane with repect to the east?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 29P: A delivery man starts at the post office, chives 40 km north, then 20 km west, then 60 km northeast,...
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The captain of a small plane starts his journey by proceeding east. The speed of the plane with respect to still air is
160 km/h. A sudden north wind starts to blow at a constant speed of 71.0 km/h. 

As seen by people on the ground, what is the angle made between the direction of motion of the plane with repect
to the east?

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