00:01
So to figure out, after this, we've got two forces acting on an object and making a 90 -degree angle.
00:09
One of them is 45 newtons, the other one is 32.
00:11
The resultant is what you get when you make a parallelogram out of this, and then the resultant is this right here.
00:20
So when it says the magnitude of that, we have to figure out how long that is.
00:23
And since this is a parallelogram, if the left side is 32, the right side is 32.
00:28
And if the bottom is 45, the top is 45.
00:31
So to find the length of the resultant, which is the magnitude, i need pythagorean theorem.
00:40
So i would do 32 squared plus 45 squared equals x squared.
00:48
That would be the length of the red line.
00:52
And if you use those numbers, you'll get 30 ,250 when you add these two numbers after squaring them.
01:01
And when you take the square root of both sides, that's approximately 57...