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## Homework Statement

I have a charge Q of +1.5*10^-7C located at co-ordinates (x,Y) (-6cm,0cm)

what is the force due to Q on a test charge of +1 C at the origin. Expressed as a vector.

## The Attempt at a Solution

F= [tex]\frac{\kappa*Q1*Q2}{r^2}[/tex]

F= [tex]\frac{8.99*10^{9}*1.5*10^{-7}*1}{.06^{2}}[/tex]

F= 3.746*10 [tex]^{5}[/tex] N repulsive force.

How do I express this in [tex]\widehat{i}[/tex], [tex]\widehat{j}[/tex] unit vector notation?