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= 50 . 0,1
= 5
c. Ep = 1/2 k (Δx)²
= 1/2 50 (0,1)²
= 25 . 0,01
= 0,25 J
b. E = 1/2.m.v²
0,25 = 1/2 0,5 v²
0,25 = 0,25 v²
v² = 1
v = 1 m/s
yang b belum yakin
m=0,5 kg
y=10 cm=0,1 m
a.f=1/2π√k/m=1/2π√50/0,1=1/2π√500=1/2π√100.5=5/π√5 hz
b.Ep=1/2.k.y^2=1/2.50.0,01=25.0,01=0,25 J
Ep=Ek
0,25=1/2m.v^2=1/2.0,5.v^2
v=1 m/s