00:01
Hello friends in this question we need to calculate the forces accordingly.
00:04
So first we draw the face body diagram at joint e.
00:09
So this is how we have.
00:11
So now we balance the forces along x -axis.
00:17
So it is summation f x is equal to 0.
00:20
So minus 680 sine 45 plus f a .e sine 45 is equal to 0.
00:31
And therefore f .a .e.
00:34
Is equal to 680 into sine 45 divided by sine 45 is equal to 680.
00:43
Now we balance the forces along y -axis and so summation fy is equal to 0.
00:51
That is minus 680, sine 45 plus f, de minus f, de minus fae cost 45.
01:01
So f, a .e is 680 cost 45 is equal to 0 and so f, de is equal to 961 .67.
01:15
So next we draw the face body diagram at joint d...