A sailboat is moving in the y direction. The wind approaches the boat at an angle of 45° to the y direction and is turned by the sails such that it leaves in exactly the -y direction. (a) If we assume that the average velocity of the incoming and outgoing wind is 10 m/s and that the mass flow rate of air being turned by the boat's sails is 200 kg / s, what are the x and y components of the force exerted by the boat's sails on the air? (b) These are the opposite of the forces exerted by the air on the boat. The y component of the wind force drives the boat in its direction of travel. What does the x component do?
A sailboat is moving in the y direction. The wind approaches the boat at an angle of 45° to the y direction and is turned by the sails such that it leaves in exactly the -y direction. (a) If we assume that the average velocity of the incoming and outgoing wind is 10 m/s and that the mass flow rate of air being turned by the boat's sails is 200 kg / s, what are the x and y components of the force exerted by the boat's sails on the air? (b) These are the opposite of the forces exerted by the air on the boat. The y component of the wind force drives the boat in its direction of travel. What does the x component do?
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Answers: Fx = -586 N = - 131.7Ibf
Fy= 1414 N = 318 lbf
Transcribed Image Text:7.10.* A sailboat is moving in the y direction. The wind
approaches the boat at an angle of 45° to the y direction
and is turned by the sails such that it leaves in exactly the
-y direction.
(a) If we assume that the average velocity of
the incoming and outgoing wind is 10 m/s
and that the mass flow rate of air being turned by the
boat's sails is 200 kg / s, what are the x and y components
of the force exerted by the boat's sails on the air?
(b) These are the opposite of the forces exerted by the air
on the boat. The y component of the wind force drives the
boat in its direction of travel. What does the x component
do?
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