108_Problem CHAPTER 9

108_Problem CHAPTER 9 - PROBLEM 9.91 CONTINUED Then = 90 -...

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PROBLEM 9.91 CONTINUED Then 90 40.326 α = °− ° 49.674 = ° ( ) 180 40.326 60 β = °+ ° 79.674 = ° ( a ) 44 ave cos 0.98175 0.77264 cos49.674 x II R a a = −= ° 4 or 0.482 x I a = W ave cos 0.98175 0.77264 cos49.674 y R a a = += + ° 4 or 1.482 y I a = W 4 sin 0.77264 sin 49.674 xy IR a ′′ = ° 4 or 0.589 I a =− W ( b ) ave cos 0.98175 0.77264 cos79.674 x R a a = + ° 4 or 1.120 x I a
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