Jawabanmu

2014-06-06T23:57:11+07:00
Diketahui E = 1,6 x 1010 N/m2
D = 10mm A = 0,0079 m2 = 79 x 10^-4 m2
e = 0,001

rumusnya
E = F . Lo / A . ΔL
E = F / A . e
1,6 x 1010 = F / 79 x 10^-4 x 10^-3
F = 1616 / 79 x 10^-7
F = 20,45 x 10^7
F = 2045 x 10^5