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Verified answer
GERAK LURUSS = 18 m
t = __?
Luas daerah di bawah grafik v t menyatakan perpindahan.
Daerah yang diarsir pada gsmbar berupa trapesium
S = ½ (V₂ + Vₜ) • (t-2)
18 = ½ (4 + 8) • (t-2)
18 = 6 • (t-2)
3 = t - 2
t = 5 s ✔️