hibbeler chapter2 솔루션
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작성일 19-05-28 04:25
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정역학 , hibbeler chapter2 솔루션기계설계솔루션 , 12
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12,기계설계,솔루션
hibbeler chapter2 솔루션
솔루션/기계설계
정역학
Download : hibbeler_chapter2.pdf( 93 )
순서
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 E…(To be continued )
다.
