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KINEMATIKA• persamaan gerak
persamaan posisi sudut
θ(t) = [3t³ - 2t + 1] rad
persamaan kecepatan sudut
ω(t) = dθ/dt
ω(t) = [9t² - 2] rad/s ✓
persamaan percepatan sudut
α(t) = dω/dt
α(t) = 18t rad/s² ✓
percepatan sudut saat t = 2 s
α(2) = 18•2 = 36 rad/s² ✓