Question

Panjang batang besi pada suhu 10°C adalah 3 m. berapakah panjang batang besi tersebut pada suhu 40°C , jika koefisien muai panjang besi 0,000011/°C?

Answer 1

ΔΤ = 40-10 = 30
Lt = Lo(1+αΔΤ)
Lt = 3(1+0,000011 x 30)
Lt = 3 x 1,00033
Lt = 3,00099 m

Answer 2

Diket:
lo = 3m
t1 = 10'c
t2 = 40'c
α = 0,000011/'c
Dit: L.........?
L = lo (1+α(t2-t1))
L = 3 (1 + 0,000011(40-10))
L = 3(1 + 0,000011(30))
L = 3(1 + 0,00033)
L = 3(1,00033)
L = 3,00099