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Persamaan kecepatan
v(t) = (3t + 2) i + 5t j
v(2) = (3 (2) + 2) i + 5 (2) j
= 8 i + 10 j ← jwb
Persamaan posisi posisi awal dianggap O(0,0)
r(t) = ∫ v dt
= ∫ [(3t + 2) i + 5t j] dt
= (³/₂ t² + 2t) i + ⁵/₂ t² j
r(2) = (³/₂ (2)² + 2 (2)) i + ⁵/₂ (2)² j
= 10 i + 10 j ← jwb
Persamaan percepatan
a(t) = dv/dt
= 3 i + 5 j
a(2) = 3 i + 5 j ← jwb