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Dua buah benda bermassa sama, m 1 ​ = m 2 ​ bergerak dengan arah berlawanan (lihat gambar). Bila besar kecepatan v 2 ​ = 2 v 1 ​ , tentukan kecepatan masing-masing benda setelah tumbukan, bila tumbukannya lenting sempurna!

Dua buah benda bermassa sama,  bergerak dengan arah berlawanan (lihat gambar). Bila besar kecepatan , tentukan kecepatan masing-masing benda setelah tumbukan, bila tumbukannya lenting sempurna!

 

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W. Diana

Master Teacher

Mahasiswa/Alumni Universitas Negeri Padang

Jawaban terverifikasi

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Pembahasan

begin mathsize 14px style m subscript 1 v subscript 1 plus m subscript 2 v subscript 2 equals m subscript 1 v subscript 1 to the power of apostrophe plus m subscript 2 v subscript 2 to the power of apostrophe m v subscript 1 minus 2 m v subscript 1 equals m v subscript 1 to the power of apostrophe plus m v subscript 2 to the power of apostrophe minus m v subscript 1 equals m v subscript 1 to the power of apostrophe plus m v subscript 2 to the power of apostrophe minus v subscript 1 equals v subscript 1 to the power of apostrophe plus v subscript 2 to the power of apostrophe minus v subscript 1 minus v subscript 2 to the power of apostrophe equals v subscript 1 to the power of apostrophe space space... space open parentheses 1 close parentheses  v subscript 1 minus v subscript 2 equals negative open parentheses v subscript 1 to the power of apostrophe minus v subscript 2 to the power of apostrophe close parentheses v subscript 1 minus open parentheses negative 2 v subscript 1 close parentheses equals negative v subscript 1 to the power of apostrophe plus v subscript 2 to the power of apostrophe 3 v subscript 1 equals negative v subscript 1 to the power of apostrophe plus v subscript 2 to the power of apostrophe space space... open parentheses 2 close parentheses  3 v subscript 1 equals negative v subscript 1 to the power of apostrophe plus v subscript 2 to the power of apostrophe 3 v subscript 1 equals negative open parentheses negative v subscript 1 minus v subscript 2 to the power of apostrophe close parentheses plus v subscript 2 to the power of apostrophe 3 v subscript 1 equals v subscript 1 plus v subscript 2 to the power of apostrophe plus v subscript 2 to the power of apostrophe 3 v subscript 1 minus v subscript 1 equals v subscript 2 to the power of apostrophe plus v subscript 2 to the power of apostrophe 2 v subscript 1 equals 2 v subscript 2 to the power of apostrophe v subscript 2 to the power of apostrophe equals v subscript 1 space space space rightwards double arrow kecepatan space straight m subscript 2 space setelah space tumbukan  minus v subscript 1 minus v subscript 2 to the power of apostrophe equals v subscript 1 to the power of apostrophe minus v subscript 1 minus v subscript 1 equals v subscript 1 to the power of apostrophe v subscript 1 apostrophe equals negative 2 v subscript 1 space space space rightwards double arrow kecepatan space straight m subscript 1 space setelah space tumbukan end style    undefined 

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