- #1
kraigandrews
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Homework Statement
Q1-----Q2-----Q3; Q1=1.78E-6C;Q2=Q3=-Q1, r1=r2=1.82m
Calculate the total force on Q2. Give your answer with a positive number for a force directed to the right.
Homework Equations
F= kq1q2/r^2
The Attempt at a Solution
F2 = F12+F23
F12 = k(1.78E-6)(-1.78E-6)/(1.82^2)
F23 = k(-1.78E-6)(-1.78E-6)/(1.82^2)
The problem is these forces cancel and I know that they shouldn't, so I am sure is some thing I am just not seeing here.