00:01
Okay, we have a situation that looks like this.
00:02
We have two masses hanging on some strings.
00:07
We're getting some dimensions here.
00:09
They did give us angles theta and phi.
00:15
And we have to be a little bit careful with those.
00:21
Because from the way i drew it, you can't see them very easily.
00:24
So anyway, i'm going to call, i'm going to draw this line across.
00:30
Cross.
00:31
I'm going to call this angle here alpha and this one here beta.
00:40
And here's the thing.
00:43
This is the angle of the string.
00:46
All right.
00:47
They're showing the pulleys having a single connector.
00:55
And that connector, the angle of that connector with the horizontal is half of alpha...