September 2018 2 66 Report
1. massa benda A tiga kali massa bnda B dan kecepatan benda A setengah kali kecepatan benda B. perbandingan energi kinetik bnda A dg energi kinetik bnda B adlh. .

2. jika A=2i + 2j dan B=3i-4j mka bsar A+B adlh. .
tolong yhaaa bntuu jwbn x mfff cmn bsa ksihh poin 10 bgii yg bsaa jwb. soalx aq ghaa pxa bxk poinn. .
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