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ω(t) = 4 - 0,9t²
α(t) = -1,8t
t = 2s
Subtitusi
α(2) = | -1,8(2)|
α = 3,6 m/s²
2. Percepatan Sudut Rata' pada t = 0s - 2 s ?
α = Δω / Δt
=
=
CMIIW
B)percpt sdt rata rata= kecpt sdt t=2s-kecpt sdt t=0s= [{4-0.9(2)^2}-{4-0.9(0)^2}]