October 2018 1 107 Report
Bantu ya kakak" please pakai cara ya
mobil A massanya sama dgn mobil B. kedua mobil brgerak lurus sehingga energi kinetik mobil A 9 kali energi kinetik mobil B. perbandingan kecepatan mobil A dgn mobil B ??
a 1:2
b. 1:4
c 3:1
d. 4:1
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