A particle with charge 7 µC is located on the

Question

x-axis at the point 4 cm , and a second particle
with charge 7 µC is placed on the x-axis at
6 cm .
−10−8 −6 −4 −2 2 4 6 8 10
7
µ
C
7
µ
C
8
µ
C
x → (cm)
What is the magnitude of the total electrostatic force on a third particle with charge
8 µC placed on the x-axis at 2 cm ? The
Coulomb constant is 8.9875 × 109 N · m2
/C
2
.
Answer in units of N.