- #1

Cglez1280

- 21

- 0

## Homework Statement

A positive charge Q1 = 7.4 μC is located at a point X1 = -2 m, a negative charge Q2 = -9.7 μC is located at a point X2 = 3 m and a positive charge Q3 = 2.1 μC is located at a point X3 = 9 m.

- Draw free body diagrams for the electric force acting on Q1, Q2 and Q3.
- Find the magnitude of the force between Q1 and Q2.
- Find the magnitude of the force between Q1 and Q3.
- Find the magnitude of the force between Q2 and Q3.
- Find the magnitude and direction of the net electric force on charge Q1.
- Find the magnitude and direction of the net electric force on charge Q2.
- Find the magnitude and direction of the net electric force on charge Q3.

I've done number 1-4 but still don't understand how to do 5-7. Physics is not my strong point at all.

Q2=9.8*10^-6

Q3=2.1*10^-6

## Homework Equations

Felect=(k*Q1*Q2)/d^2

## The Attempt at a Solution

Ok so far I've tried doing things I'll upload a picture but help would be very appreciated. I'm not sure how to calculate the net force