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a(t) = 8t m/s²
r₀ = 5 m
ditanya : r(t) = .... ?
dijawab :
mencari kecepatan:
v(t) = v₀ + ∫ a(t) dt
= 3 + ∫ (8t) dt
= 3 + 4t²
mencari posisi:
r(t) = r₀ + ∫ v(t) dt
= 5 + ∫ (3 + 4t²) dt
= 5 + 3t + 4/3 t³
r(t) = 4/3 t³ + 3t + 5
Jawaban : - (Tidak ada option yang memenuhi)