A charge of -5 C is at (1, 3 ) and a charge of 1 C is at (8,4 ) . If both coordinates are in meters, what is the force between the charges?

1 Answer
Mar 7, 2018

3.6*10^9 N or 3.6 GN

Explanation:

You first want to use the coordinates to calculate a distance between the charges.
d=sqrt((x_2-x_1)^2+(y_2-y_1)^2)
The distance between the two charges is 5sqrt2 meters
This will be your radius when calculating for the electric force. The formula for the electric force is
Fe^(-)=(Kq_1q_2)/r^2
where K=9*10^9 and the units for q is in coulombs and the r is in meters.
Fe^(-)=(9*10^9)(-5)(4)/(5sqrt2)^2