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Suatu segitiga sama sisi mempunyai sisi 5 meter dan setiap sudutnya diberi benda bermassa 10 kg, 20 kg, dan 30 kg. Apabila G = konstanta gravitasi = 6 , 67 × 1 0 − 11 N / m 2 kg 2 ,benda yang mempunyai massa 10 kg mengalami gaya sebesar ... N

Suatu segitiga sama sisi mempunyai sisi 5 meter dan setiap sudutnya diberi benda bermassa 10 kg, 20 kg, dan 30 kg. Apabila G = konstanta gravitasi = , benda yang mempunyai massa 10 kg mengalami gaya sebesar ... N

  1. 1 comma 6 cross times 10 to the power of negative 9 end exponent space straight N 

  2. 1 comma 5 cross times 10 to the power of negative 9 end exponent space straight N 

  3. 1 comma 4 cross times 10 to the power of negative 9 end exponent space straight N 

  4. 1 comma 6 cross times 10 to the power of negative 8 end exponent space straight N 

  5. 1 comma 2 cross times 10 to the power of negative 9 end exponent space straight N  

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M. Mutiara

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah E

jawaban yang tepat adalah E

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Pembahasan

Jadi, jawaban yang tepat adalah E

table attributes columnalign right center left columnspacing 0px end attributes row cell R subscript 12 end cell equals cell 5 space straight m end cell row cell straight R subscript 13 end cell equals cell 5 space straight m end cell row cell m subscript 1 end cell equals cell 10 space kg end cell row cell straight m subscript 2 end cell equals cell 20 space kg end cell row cell straight m subscript 3 end cell equals cell 30 space kg end cell end table 

table attributes columnalign right center left columnspacing 0px end attributes row cell F subscript 12 end cell equals cell fraction numerator G times m subscript 1 times m subscript 2 over denominator R subscript 12 squared end fraction end cell row cell F subscript 12 end cell equals cell fraction numerator G times 10 times 20 over denominator 5 squared end fraction end cell row cell F subscript 12 end cell equals cell 8 space G end cell end table 

table attributes columnalign right center left columnspacing 0px end attributes row cell F subscript 13 end cell equals cell fraction numerator G times m subscript 1 times m subscript 3 over denominator R subscript 13 squared end fraction end cell row cell F subscript 13 end cell equals cell fraction numerator G times 10 times 30 over denominator 5 squared end fraction end cell row cell F subscript 13 end cell equals cell 12 space G end cell end table

table attributes columnalign right center left columnspacing 0px end attributes row cell F subscript r end cell equals cell square root of F subscript 12 squared plus F subscript 13 squared plus 2 times F subscript 12 times F subscript 13 times cos space theta end root end cell row cell F subscript r end cell equals cell square root of left parenthesis 8 space G right parenthesis squared plus left parenthesis 12 space G right parenthesis squared plus 2 times left parenthesis 8 space G right parenthesis times left parenthesis 12 space G right parenthesis times cos space 60 end root end cell row cell F subscript r end cell equals cell square root of 64 space G squared plus 144 space G squared plus 192 space G squared times 1 half end root end cell row cell F subscript r end cell equals cell square root of 208 space G squared plus 96 space G squared end root end cell row cell F subscript r end cell equals cell square root of 304 space G squared end root end cell row cell F subscript r end cell equals cell 17 comma 4 space G end cell row cell F subscript r end cell equals cell 17 comma 4 cross times 6 comma 673 cross times 10 to the power of negative 11 end exponent end cell row cell F subscript r end cell equals cell 116 comma 1 cross times 10 to the power of negative 11 end exponent space straight N end cell row cell F subscript r end cell almost equal to cell 1 comma 2 cross times 10 to the power of negative 9 end exponent space straight N end cell end table

Jadi, jawaban yang tepat adalah E

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