There Is $\mathrm { a } + 5.0 - \mu \mathrm { C }$

Short Answer

There is $\mathrm { a } + 5.0 - \mu \mathrm { C }$ charge at three corners of a square having sides $70 \mathrm {~mm}$ long. What are the magnitude and direction of the net electrostatic force on $+ 6.0 \mu \mathrm { C }$ placed at the center of the square? $\left( k = 1 / 4 \pi \varepsilon _ { 0 } = 9.0 \times 10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 } \right)$