00:02
In this problem, we have a pipe that has an elbow on it.
00:07
So it's straight here, and there's an elbow on another little straight section here.
00:12
And it's kind of wedged between a couple walls, as you can see in the book.
00:19
So, and then there's an external load acting on it here.
00:23
That's at an angle of 30 degrees from the negative y -axis.
00:32
And so we have a load here, a load here from the wall.
00:35
All of these these internal loads are reaction forces are from the walls that the pipe is of the wall that the pipe is extending through so let's see here we have and then we know that this wall is inclined at 30 degrees or 30 degrees from the vertical here so we you know the direction of this and then at this point it is basically acting at a at the corner of the wall so we're going to assume that it is free to slide in this direction likewise for assuming that it's free to slide here too and then here it's acting at the corner so again we're gonna assume that it's normal to the pipe and it's free to slide in the horizontal direction here so, f1 has a magnitude of f1 and a direction given by this unit vector, and we'll kind of call that the origin.
01:53
F2 is in the negative vertical direction, and it is a distance of 0 .15 meters to the left of the origin and 0 .26 meters down from the origin...