0:00
All right.
00:01
So we are to determine the magnitude of the net force on charge 2 in the given scenarios here.
00:10
So for a, we have negative, positive, and positive.
00:16
This is 1, 2, 3.
00:18
So the force acted by charge 1 on charge 2, since they have opposite charges, then that means you have force here.
00:30
So the tract, force acted by 1 and 2.
00:36
As for 2 and 3, they have the same charges, positive charges, so that means we have the charge or the force here, force acted by 3 on 2.
00:46
The net force, since they're both and the negative x -axis, that's negative force acted by charge 1 and 2.
01:05
Using columns equation we have k which is equivalent to 8 .99 times 10 to the part of 9 this is newton's meter squared per column squared charge is given it's 9 .8 this is micro column so that's times 10 to the negative 6 columns squared over the distance the distance is 4 m m so let's convert those to meters 1 ,000 m m is 1 meter and rate to the power of 2 and then add the same force acted by 1 and 2 negative 8 .8 .9 times 10 to the part of 9 multiplied by 9 .8 times 10 to the negative 6 squared over 4 divided by 1 ,000.
02:06
And solving for this, you have negative 53962 .475 plus negative 50 ,000 .5, plus negative 50 ,000.
02:17
3962 .475.
02:23
So adding these two numbers, negative 53962 .475, plus negative 539962.
02:39
.
02:39
This is equivalent to negative 10794 .95 mutants.
02:50
As for the next scenario, we have positive it deserve positive, positive, positive.
03:07
This is charge two.
03:09
So they have, for one and two, they have positive charges.
03:14
So this will repel...