00:01
So again, we have a beam laying on a ground, and we're told to assume that the force from the ground is distributed uniformly.
00:09
In this case, we have three point loads.
00:12
And so we can figure out, we're actually given values in this case, so we can figure out that the force down here is two kips per feet per foot.
00:22
And so we take cuts in between all of these loads, and we start with the zero shear here, and we better end up with a zero shear here.
00:31
So we come here and we wind up increasing at a rate of two kips per feet.
00:38
And then this load here is six, so we drop down to six, drop down six units, and so we're at minus two.
00:47
And then we start back up, increasing with the slope of two kips per foot.
00:53
And then this middle load is 12, so we drop down to 12 units to minus six, and then we again start climbing...