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ω = -10t + 80
Persaman percepatan sudut
α = ω' = -10 rad/²
percepatan sudut KONSTAN → GMBB
• pada saat t = 0 (keadaan awal),
ω(0) = 80 rad/s
• berhenti bergerak ω = 0
ω = -10t + 80
0 = -10t + 80
10t = 80
t = 8 s
• Banyak putaran hingga berhenti
= (ωo + ωt) t
= (80 + 0) 8
= 320 rad ← jawaban
atau menggunakan integral untuk mencari
Ok ?