00:01
Looking at figure 2 .29, and it shows basically this.
00:15
So x sub s is 6 meters.
00:26
T is 2 right here.
00:32
And then we also know, oh, i didn't draw it very nicely.
00:36
This is 1, 0.
00:40
And then if this is 6, then 5.
00:46
For this would be negative 2 meters.
00:53
Okay.
00:55
What's the magnitude and direction of acceleration? if that's position.
01:02
Okay.
01:04
Well, um, x equals um, x squared plus bx plus c.
01:21
So if we know that, oh, not x, there should be t's in here.
01:32
If we know that x equals negative 2, when t is 0, then c is negative 2.
01:47
So i'm going to erase that, and i'm going to write minus 2.
01:54
If we know that when x equals 1, no, when t equals 1, x is 0, a plus b minus 2...