Answer:
N
Step-by-step explanation:
We are given that three charged particle are placed at each corner of equilateral triangle.




Side of equilateral triangle =3.3 cm=

We know that each angle of equilateral angle=

Net force=F =

Where k=

If we bisect the angle at
then we have 30 degrees from there to either charge.
Direction of vertical force due to charge
and

Therefore, force will be added
Vertical force=

Vertical net force=

Vertical force =

Vertical force=
(towards

Horizontal component are opposite in direction then will b subtracted
Horizontal force=

Horizontal force=
N(towards

Net electric force acting on particle 3 due to particle =

Net force=

Net force=
N