Problem $11$: $(9\%$ of Assignment Value$)$

Point charges, each a multiple of $q,$ are located at positions $x=1\mathrm{.}0cm,5\mathrm{.}0cm,8\mathrm{.}0cm,$ and $14\mathrm{.}0$ cm along the $x-$axis, as represented in the figure. Take $q=5\mathrm{.}8nC.$

Otheexpertta.com

Find the $x-$component of the total electric field, in newtons per coulomb, at $x=11\mathrm{.}0cm.E_x(11\mathrm{.}0cm)=$ N$/$C

Hint

Fresthack

I give up