00:01
This question cover the vector analysis of the force and let's discuss how we draw the diagram here.
00:10
We have assumed that the force f1 is directed along the positive x -axis and the force f2 is at angle 30 degree from the force f1 and the force f3 is 30 degree from force f2 and the force f4 is 30 degree from the force f3.
00:29
So first we need to write the x component and the y component.
00:33
Of the force is the x component of the force f1 equals 2 ,750 pounds and the y component is 0 pound for f2 x component is 2 ,750 pounds cost 30 degrees and that equals 2 ,380 pounds the y component is 2 ,750 pounds, sign 30 degrees, that comes to be 1 ,380 pounds.
01:17
For force f3, the x component is 2 ,750 pounds.
01:26
Cost for f3 alpha is 60 degrees, so cost 60 degree and it comes.
01:33
Comes 1380 pounds and the y component is 2750 pounds sign 60 degrees that is 2 ,380 pounds...