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Perhatikan gambar berikut! Jika sistem di atas berada dalam keadaan seimbang maka besar T 1 adalah ….

Perhatikan gambar berikut!

 

Jika sistem di atas berada dalam keadaan seimbang maka besar T1 adalah ….

  1. Error converting from MathML to accessible text.    

  2. Error converting from MathML to accessible text.   

  3. Error converting from MathML to accessible text.    

  4. Error converting from MathML to accessible text.   

  5. Error converting from MathML to accessible text.   

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M. Robo

Master Teacher

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Pembahasan

Gambar diagram gaya bebas sistem di atas Pada sumbu horizontal berlaku hubungan Pada sumbu vertikal berlaku hubungan Substitusi ( 1) ke persamaan ( 2) maka

Gambar diagram gaya bebas sistem di atas

 

Pada sumbu horizontal berlaku hubungan

size 14px capital sigma size 14px F subscript size 14px x size 14px equals size 14px 0 size 14px T subscript size 14px 1 size 14px c size 14px o size 14px s size 14px invisible function application size 14px 45 size 14px degree size 14px minus size 14px T subscript size 14px 2 size 14px c size 14px o size 14px s size 14px invisible function application size 14px 30 size 14px degree size 14px equals size 14px 0 size 14px T subscript size 14px 1 size 14px left parenthesis size 14px 1 over size 14px 2 square root of size 14px 2 size 14px right parenthesis size 14px minus size 14px T subscript size 14px 2 size 14px left parenthesis size 14px 1 over size 14px 2 square root of size 14px 3 size 14px right parenthesis size 14px equals size 14px 0 size 14px 1 over size 14px 2 square root of size 14px 2 size 14px T subscript size 14px 1 size 14px equals size 14px 1 over size 14px 2 square root of size 14px 3 size 14px T subscript size 14px 2 square root of size 14px 2 size 14px T subscript size 14px 1 size 14px equals square root of size 14px 3 size 14px T subscript size 14px 2 size 14px space size 14px T subscript size 14px 2 size 14px equals size 14px left parenthesis fraction numerator square root of size 14px 2 over denominator square root of size 14px 3 end fraction size 14px right parenthesis size 14px T subscript size 14px 1 size 14px T subscript size 14px 2 size 14px equals size 14px left parenthesis fraction numerator square root of size 14px 2 over denominator square root of size 14px 3 end fraction size 14px cross times fraction numerator square root of size 14px 3 over denominator square root of size 14px 3 end fraction size 14px right parenthesis size 14px T subscript size 14px 1 size 14px T subscript size 14px 2 size 14px equals size 14px 1 over size 14px 3 square root of size 14px 6 size 14px T subscript size 14px 1 size 14px space size 14px. size 14px. size 14px. size 14px space size 14px. size 14px. size 14px. size 14px space size 14px. size 14px. size 14px. size 14px left parenthesis size 14px 1 size 14px right parenthesis        

Pada sumbu vertikal berlaku hubungan

begin mathsize 14px style capital sigma F subscript y equals 0 T subscript 1 s i n invisible function application 45 degree minus T subscript 2 s i n invisible function application 30 degree minus W equals 0 T subscript 1 left parenthesis 1 half square root of 2 right parenthesis minus T subscript 2 left parenthesis 1 half right parenthesis minus 100 equals 0 1 half square root of 2 T subscript 1 minus 1 half T subscript 2 equals 100 square root of 2 T subscript 1 minus T subscript 2 equals 200 space horizontal ellipsis space horizontal ellipsis space horizontal ellipsis space left parenthesis 2 right parenthesis end style   

Substitusi (1) ke persamaan (2) maka

begin mathsize 14px style square root of 2 T subscript 1 minus 1 third square root of 6 T subscript 1 equals 200 T subscript 1 left parenthesis square root of 2 minus 1 third square root of 6 right parenthesis equals 200 T subscript 1 equals fraction numerator 200 over denominator square root of 2 minus begin display style 1 third end style square root of 6 end fraction T subscript 1 equals fraction numerator 200 over denominator left parenthesis 3 square root of 2 minus square root of 6 right parenthesis divided by 3 end fraction T subscript 1 equals fraction numerator 600 over denominator 3 square root of 2 minus square root of 6 end fraction T subscript 1 equals fraction numerator 600 over denominator 3 square root of 2 minus square root of 6 end fraction cross times fraction numerator 3 square root of 2 plus square root of 6 over denominator 3 square root of 2 plus square root of 6 end fraction T subscript 1 equals fraction numerator 600 over denominator open parentheses 18 minus 6 close parentheses end fraction left parenthesis 3 square root of 2 plus square root of 6 right parenthesis T subscript 1 equals 50 left parenthesis 3 square root of 2 plus square root of 6 right parenthesis space straight N end style     

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