00:01
We have a little more complicated mechanism here, but the analysis is exactly the same as before.
00:07
So we have one bar, one member that looks like this, and another one that looks like an l.
00:12
They're connected at point c.
00:14
So we attach this point to here, and so we get something.
00:18
Our mechanism looks like in the book.
00:20
And then we either apply the load at a, d, or e.
00:30
So those are all on the same vertical line.
00:36
So what we have is we can write position vectors to all the points of interest.
00:42
I use b as the origin, so this pivot point here.
00:49
This is grounded at point f and this is grounded at point b.
00:53
And so we can write all of our position vectors with respect to b.
00:58
And then our forces, i just included them generally.
01:08
And all of them so we can set either whatever two we want to zero.
01:13
So i solve the problem in general so that we can then get each part of the problem all at once.
01:20
And so the first set of balance equations.
01:22
So again, we have six unknowns here...