Jawabanmu

2014-09-10T05:51:24+07:00
Diket :
F_1 = 1N
r = 2,5mm
r_2 = 5mm
F_2 = ....?

jarak semula 2,5mm dan jarak kedua 5mm, jarak kedua 2 kalinya jarak semula

F_2 =  \frac{1}{r^2} F_1

F_2 =  \frac{1}{2^2} F_1

F_2 = \frac{1}{4} F_1

F_2 = 1 :  \frac{4}{1} F_1

F_2 = 1 ×  \frac{1}{4}

F_2 =  \frac{1}{4} F_1