Point

Charge

x

y

x_i − x_j

y_j − y_i

$d_{ij}^2$

F_x

F_y

(7, 11)

+

7

11

N/A

N/A

N/A

N/A

N/A

(3, 17)

+

3

17

4

−6

52

0.0769

−0.1154

(14, 15)

+

14

15

−7

−4

65

−0.1077

−0.0615

(16, 8)

+

16

8

−9

3

90

−0.1000

−0.0333

(4, 4)

−

4

4

−3

−7

58

−0.2069

−0.4828