College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Textbook Question
Chapter 3, Problem 62PE
The velocity of the wind relative to the water is crucial to sailboats. Suppose a sailboat is in an ocean current that has a velocity of 2.20 m/s in a direction 30.0° east of north relative to the Earth. It encounters a wind that has a velocity of 4.50 m/s in a direction of 50.0° south of west relative to the Earth. What is the velocity of the wind relative to the water?
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A jet airliner moving initially at 3.35 ✕ 102 mi/h due east enters a region where the wind is blowing at 1.00 ✕ 102 mi/h in a direction 29.5° north of east. (Let the x-direction be eastward and the y-direction be northward.)
(a) Find the components of the velocity of the jet airliner relative to the air,
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vJA,y
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(b) Find the components of the velocity of the air relative to Earth,
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mi/h
vAE,y
=
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(d) What are the speed and direction of the aircraft relative to the ground?
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(a) Find the components of the velocity of the jet airliner relative to the air,
vJA.
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=
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vJA,y
=
? mi/h
(b) Find the components of the velocity of the air relative to Earth,
vAE.
vAE,x
=
?mi/h
vAE,y
=
?mi/h
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magnitude
mi/h
direction
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Chapter 3 Solutions
College Physics
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