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Empat buah partikel bermassa sama 2m dihubungkan dalam satu sistem seperti gambar. Jika sistem tersebut diputar terhadap sumbu x, maka momen inersia sistem adalah ....

Empat buah partikel bermassa sama 2m dihubungkan dalam satu sistem seperti gambar.

Jika sistem tersebut diputar terhadap sumbu x, maka momen inersia sistem adalah ....

  1. begin mathsize 14px style 272 space ma squared straight space kg. straight m squared end style

  2. begin mathsize 14px style 136 space ma squared straight space kg. straight m squared end style

  3. begin mathsize 14px style 68 space ma squared straight space kg. straight m squared end style

  4. begin mathsize 14px style 60 space ma squared straight space kg. straight m squared end style

  5. begin mathsize 14px style 16 space ma squared straight space kg. straight m squared end style

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R. Amalia

Master Teacher

Mahasiswa/Alumni Universitas Padjadjaran

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Diketahui space colon straight m subscript straight a space equals space straight m subscript straight b space equals space straight m subscript straight c space equals space straight m subscript straight d space equals space 2 straight m space space straight r subscript straight a space equals space straight r subscript straight b space equals space 2 straight a space space straight r subscript straight c space equals space straight r subscript straight d space equals space 8 straight a space space Ditanya space colon space straight I space ? space space Momen space inersia space total space sistem space dapat space dihitung space sebagai space berikut space colon

begin mathsize 14px style straight I equals straight space straight m subscript straight a. straight r subscript straight a squared plus straight m subscript straight b. straight r subscript straight b squared plus straight m subscript straight c. straight r subscript straight c squared plus straight m subscript straight d. straight r subscript straight d squared straight I equals 2 straight m straight space open parentheses straight r subscript straight a squared plus straight r subscript straight b squared plus straight r subscript straight c squared plus straight r subscript straight d squared close parentheses equals 2 straight m straight space left parenthesis left parenthesis 2 straight a right parenthesis squared plus left parenthesis 2 straight a right parenthesis squared plus left parenthesis 8 straight a right parenthesis squared plus left parenthesis 8 straight a right parenthesis squared right parenthesis straight I equals 2 straight m straight space open parentheses 136 straight a squared close parentheses equals 272 ma squared straight space kg. straight m squared end style

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Bola A bermassa = 1 kg dan bola B = 0,5 kg dihubungkan batang AB (massanya diabaikan). Jika kedua bola diputar dengan sumbu putar di P maka momen inersia sistem adalah ....

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