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Sistem tanpa gesekan terdiri dari benda A dan B yang massanya masing-masing 2 kg dan 3 kg diperlihatkan pada gambar. Benda A dan B dapat bergerak bebas. Bila g = 10 m . s − 2 , nilai tegangan tali T adalah ….

Sistem tanpa gesekan terdiri dari benda A dan B yang massanya masing-masing 2 kg dan 3 kg diperlihatkan pada gambar. Benda A dan B dapat bergerak bebas. Bila , nilai tegangan tali T adalah ….

  1. 12 N

  2. 10 N

  3. 6 N

  4. 5 N

  5. 2 N

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Diketahui space colon  space straight m subscript straight A equals space 2 space kg space  space straight m subscript straight B equals space 3 space kg

straight D begin inline style straight e end style begin inline style straight n end style begin inline style straight g end style begin inline style straight a end style begin inline style straight n end style begin inline style space end style begin inline style straight m end style begin inline style straight e end style begin inline style straight n end style begin inline style straight g end style begin inline style straight g end style begin inline style straight u end style begin inline style straight n end style begin inline style straight a end style begin inline style straight k end style begin inline style straight a end style begin inline style straight n end style begin inline style space end style begin inline style straight H end style begin inline style straight u end style begin inline style straight k end style begin inline style straight u end style begin inline style straight m end style begin inline style space end style begin inline style straight I end style begin inline style straight I end style begin inline style space end style begin inline style straight N end style begin inline style straight e end style begin inline style straight w end style begin inline style straight t end style begin inline style straight o end style begin inline style straight n end style begin inline style space end style begin inline style colon end style  sum for blank of begin inline style straight F end style begin inline style space end style begin inline style equals end style begin inline style space end style begin inline style sum for blank of end style begin inline style straight m end style begin inline style space end style begin inline style straight a end style  straight a equals fraction numerator sum for blank of straight F over denominator sum for blank of straight m end fraction begin inline style equals end style fraction numerator straight w subscript straight B over denominator straight m subscript straight A plus straight m subscript straight B end fraction begin inline style space end style  begin inline style space end style straight a equals begin inline style space end style fraction numerator open parentheses 3 close parentheses open parentheses 10 close parentheses over denominator 2 plus 3 end fraction begin inline style equals end style 30 over 5 begin inline style equals end style begin inline style 6 end style begin inline style space end style begin inline style straight m end style begin inline style divided by end style begin inline style straight s squared end style

begin inline style Tinjau space benda space straight B comma space maka colon  sum for blank of straight F subscript straight B equals straight m subscript straight B straight a  straight T minus straight w subscript straight B equals straight m subscript straight B open parentheses negative straight a close parentheses  straight T equals straight w subscript straight B minus straight m subscript straight B. straight a  straight T equals straight m subscript straight B open parentheses straight g minus straight a close parentheses  straight T equals open parentheses 3 close parentheses open parentheses 10 minus 6 close parentheses  straight T equals space 12 space straight N end style

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Dua benda A dan B masing-masing 2 kg dan 3 kg dihubungkan dengan tali melalui katrol seperti pada gambar. Jika lantai dan gesekan antar tali diabaikan, dan B bergerak turun, maka besar tegangan tali a...

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