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Dit:
K pegas.?
Gunakan persamaan
F = k . Δx - untuk mncari F benda gunakan pers F = M.g
m.g = k .Δx -- masukkan data yang ada
10.1,25 = k 0,05
12,5 = 0,05k
k = 12,5 / 0,05
k = 250N/m
8. dik : K pegas : 400 N/m
m : 10 kg
Lt:85cm --> 0,85m
g=10m/s^2
Dit :Lo?
Pertama cari dulu ΔL
F= k . Δx
m.g = k . Δx
10 .10 =400 .Δx
100 = 400Δx
Δx = 100/400 = 0,25 m
Δx = Lt-Lo
0,25 = 0,85 - Lo
Lo = 0,85 - 0,25
Lo = 0,6 m