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Verified answer
v = 2i + 7j
v' = -i + 3j
t = 2 s
a = __?
_
a = ∆v / t
a = [2i + 7 j - (-i + 3j)] / 2
a = (3i + 4j) / 2
a = (1,5 i + 2 j) m/s². ← jwb
Verified answer
Kinematika dengan Vektor.a rata-rata = (v₂ - v₁) / (t₂ - t₁)
= [(-i + 3j) m/s - (2i + 7j) m/s] / (2 s - 0 s)
= (-3/2 i - 2j) m/s²