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Bila ,  dan . Tentukan besar tegangan tali  dan  !

Pertanyaan

Bila begin mathsize 14px style m subscript 1 equals 2 space kg end stylebegin mathsize 14px style m subscript 2 equals 3 space kg end style dan begin mathsize 14px style m subscript 3 equals 5 space kg end style. Tentukan besar tegangan tali begin mathsize 14px style T subscript 1 end style dan begin mathsize 14px style T subscript 2 end style !

Pembahasan Video:

Pembahasan Soal:

Diketahui :

begin mathsize 14px style m subscript 1 equals 2 space kg m subscript 2 equals 3 space kg m subscript 3 equals 5 space kg F equals space 50 space straight N end style 

Ditanya : undefined dan undefined ?

Jawab :

Berdasarkan hukum II Newton

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell capital sigma F end cell equals cell m a end cell row F equals cell left parenthesis m subscript 1 plus m subscript 2 plus m subscript 3 right parenthesis a end cell row 50 equals cell left parenthesis 2 plus 3 plus 5 right parenthesis a end cell row a equals cell 50 over 10 end cell row a equals cell 5 space straight m divided by straight s squared end cell end table end style 

Tegangan tali 1

begin mathsize 14px style capital sigma F equals m a T subscript 1 equals m subscript 1 a T subscript 1 equals 2 cross times 5 T subscript 1 equals 10 space straight N end style 

Tegangan tali 2

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell capital sigma F end cell equals cell m a end cell row cell T subscript 2 minus T subscript 1 end cell equals cell m subscript 2 a end cell row cell T subscript 2 end cell equals cell m subscript 2 a plus T subscript 1 end cell row cell T subscript 2 end cell equals cell 3 cross times 5 plus 10 end cell row cell T subscript 2 end cell equals cell 15 plus 10 end cell row cell T subscript 2 end cell equals cell 25 space straight N end cell end table end style 

Jadi, besar tegangan tali begin mathsize 14px style bold italic T subscript bold 1 bold equals bold 10 bold space bold N end style dan begin mathsize 14px style bold italic T subscript 2 bold equals bold 25 bold space bold N end style.

 

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 03 Juni 2021

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