00:01
So for this problem, there is a lot to go over.
00:04
So i'm going to draw two pictures for you first.
00:09
Just to kind of help you understand.
00:58
So we have that picture.
01:01
And then we also kind of have this guy, which he's not really much.
01:09
But he just kind of, he helps a little bit.
01:32
So start with v.
01:38
You're going to kind of draw this little r thing.
01:42
Which would be velocity of river with respect to the ground, which is 4 .4 meters per second.
02:06
We also have v, b, the little r thing kind of looks like pi, which would be velocity of boat with respect to the river, which is 6 .9 meters per second.
02:37
Or this will equal negative 6 .9 sine 33 plus 6 .9 cosine 33.
02:57
So we have vbr plus v3.
03:10
Rg.
03:14
So that is negative 6 .9, sine 33 plus 6 .9 cosine 33 plus 4 .4.
03:38
So that'll then be negative 3 .758 plus 5 .786 plus 4 .4...