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Semoga Membantu :-)
s total = 16 x 5 + 12 x 5 = 80 + 60 = 140 m
t toal = 5 + 5 = 10 sekon
kecepatan rata-rata = s total / t total
= 140 m / 10 sekon
= 14 m/s
Maka, kecepatan rata-rata burung tersebut adalah 14m/s
>(SEMOGA MEMBANTU)<