R
U
G
R
TO
TU
, U
R
U
G
R
TO
TU
, U
R
U
G
R
TO
TU
, Prob. i1.1
(a) i 𝑐 i = i √102 i + i72 i i= i 12.21 ift
(b) i 𝑏 i = i √202 i − i162 i i= i 12.00 im
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Prob. i1.2
(a) i 𝑎 i = i 25 isin i48° i = i 18.58 ift
(b) i 𝑏 i = i √252 i − i18.582 i i= i 16.73 ift
TU
(c) i ℎ i = i b isin i48° i = i 16.73 i sin i48° i = i 12.43 ift
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Prob. i1.3
𝑎 i = i √722 i − i67.32 i i= i 25.59 ift
TO
A i= icos–1(67.3/72) i= i20.8
B i= isin–1(67.3/72) i= i69.2°
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Prob. i1.4
R
AB i= i28 isin i70° i= i26.3 ift
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Prob. i1.5
G
𝑐 i = i √102 i + i62 i i= i 11.6 ift
𝜃 i = i tan−1(6⁄10) i = i 31.0°
U
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Prob. i1.6
R
𝐴𝐵 i = i √122 i + i162 i i = i 20 ift
𝐵𝐶 i = i √122 i + i322 i i = i 34.2 ift
𝐴 i = i tan−1(12⁄16) i = i 36.9°
U
𝐶 i = i tan−1(12⁄32) i = i 20.6°
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Prob. i1.7
θ i = i sin−1(5⁄6) i = i 56.4°
𝑥 i = i √122 i + i102 i i= i 6.63 ift
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1-1