00:01
We have a few things going on here.
00:02
First of all, we have this force going this way.
00:08
This is 60 degrees, and so we could see that this is going to be two parts.
00:18
Here we have the y, here we have the x, and we say that the x is equal to the magnitude of the force.
00:27
And then this is going to be cosine of 60 degrees and then the y is 450 and then this will be sine of 60 degrees so plugging that into a calculator this is 225 newtons and this one is 389 .7 newtons and then we have another one in this direction.
00:59
So let's do this in black.
01:00
This will be 15 degrees.
01:04
And so we have this y and then this x.
01:09
So the x will be the magnitude 700, which we have in the diagram.
01:19
And then this will be cosine of the angle, 15 degrees.
01:24
Which is 676 .1 newtons.
01:29
And then y is going to be 700 sine of 15 degrees, which is 181 .2 newtons.
01:41
Okay, so now what we're going to do is add the x's.
01:50
That is going to be, they're going in opposite directions, so this one here is going to be positive x positive y.
02:00
So that's 225 newtons.
02:04
Let's write the y now too.
02:06
This will be 389 .7 newtons.
02:12
And so here both of them are negative because they're in the third quadrant.
02:16
We have negative 676 .1 newtons and 181 .2 newtons.
02:25
Okay, so this will give us negative 451 .1 newtons.
02:32
That's going to be in this direction.
02:35
And then this one is going to be positive 208 .5 newtons.
02:39
And that's in this direction.
02:41
So the resultant force that we get is going to be in the second quadrant here.
02:49
And so this is our resultant force...