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• persamaan simpangan
A = 5 cm
f = 1,5 Hz
t = 1,5 s → y = __
ω = 2π f
ω = 2π • 1,5
ω = 3π rad/s
persamaan simpangan
y = A sin ωt
y = 5 sin (3π t)
untuk t = 1,5 s
y = 5 sin (3π • 1,5)
y = 5 sin 4,5π
y = 5 sin (4π + ½π)
y = 5 sin ½π
y = 5 sin 90°
y = 5 cm ← jwb
Ok ?