00:01
We have these two boxes on this inclined conveyor belt, and so there's a coefficient of friction between the boxes and the conveyor belt.
00:10
And let's see here.
00:15
What we can do is we're given the kinetic coefficient of friction between the two boxes, between the boxes and each box and the conveyor belt.
00:27
And they're in contact initially.
00:30
So there's this friction force here.
00:32
Or not a friction, there's this force between them, a contact force.
00:37
And what we can do is, there's two possibilities, right, that they remain in contact or they lose contact and separate.
00:54
So i assume they remain in contact.
00:56
If they remain in contact, then their accelerations have to be equal, and then this force much be greater than zero.
01:04
So that we have, you know, that this thing is, that this, you know, that we have these, these, basically a compression, you know, a force pushing one against the other.
01:20
Now, if we actually, i didn't go through all the details because it turns out they don't remain in contact, but if we go through that, we can figure out that indeed this force is negative.
01:34
So if they would glue together, then that would be fine...