hibbeler chapter2 대학교재솔루션 자료

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hibbeler chapter2 대학교재솔루션

정역학

Engineering Mechanics - Statics

Chapter 2

Problem 2-1 Determine the magnitude of the resultant force FR = F1 + F 2 and its direction, measured counterclockwise from the positive x axis. Given: F 1 = 600 N F 2 = 800 N F 3 = 450 N

α = 45 deg β = 60 deg γ = 75 deg

Solution:

ψ = 90 deg ? β + α
FR = F1 + F 2 ? 2 F1 F 2 cos ( ψ)
2 2

F R = 867 N FR F2

sin ( ψ)

=

sin ( θ ) sin ( ψ) ? ? FR ?

θ = asin ?F 2 θ = 63.05 deg φ = θ+α φ = 108 deg

? ?

Problem 2-2 Determine the magnitude of the resultant force and its direction measured counterclockwise from the positive x axis. Given: F 1 = 80 lb F 2 = 60 lb
13

ⓒ 2007 R. C. Hibbeler. Published by Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced, in any form or by any means, without permission in writing from the publisher.

Engineering Mechanics - Stat

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[문서정보]

문서분량 : 40 Page
파일종류 : PDF 파일
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파일이름 : hibbeler_chapter2.pdf
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