Fig 1. shows an arrangement of three charges 𝑞ଵ = +2𝜇𝐶 𝑞ଶ = −4𝜇𝐶 and q3= +5𝜇C,

placed on the vertices of an equilateral triangle of side 2.0 m.
1.1 Calculate the magnitude and direction of net electrostatic force acting on charge
𝑞ଵ.