In the figure, $Q=+6\mathrm{.}0nC,$ and $q_1=q_2=+2\mathrm{.}0nC.$ All three charges are located at the vertices of an equilateral triangle with sides of length $0\mathrm{.}010m.$

a$)$ Draw the direction of the net force exerted on $Q$ due to $q_1$ and $q_2$ on the diagram.

b$)$ Calculate the net force exerted on $Q$ by $q_1$ and $q_2.$