Jawabanmu

2014-02-01T20:46:07+07:00
Diketahui =
A = 4 mm² = 4.10⁻⁶ m²
L₀ = 10 m
F = 48 N
E₀ = 12×10¹° N/m²

maka,
E₀ =F x L₀ / A x ΔL
maka, ΔL = E₀ x A / F x L₀
= 12.10¹° x 4.10⁻⁶ / 48 x 10
= 10³ m