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Verified answer
Gerak MelingkarLaju = 210 putaran / menit
d = 12 cm
R =½ d = 6 cm = 0,06 m
aₛ = _ ?
f = 210 / 60
f = 3,5 Hz
aₛ = ω²R
aₛ = (2πf)²R
aₛ = 4π²f²R [dengan asumsi π² ≈ 10]
aₛ = 40 • (3,5²) • 0,06
aₛ = 29,4 m/s²