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Verified answer
Diketahuiωo = 40 rad/s
t = 2 s
ωt = 80 rad/s
Ditanya
θ =___?
Jawab
Cari dahulu percepatan sudutnya
ωt = ωo + at
80 = 40 + a(2)
80 - 40 = a (2)
40 = a (2)
40/2 = a
20 = a
Maka posisi sudut
θ = ωοt + 1/2 at
θ = 40 (2) +1/2. 20 (2)
θ = 80 + 10 (4)
θ = 80 - 40
θ = 40