0:00
Hello.
00:02
So this problem involves connected bodies and an inclined plane.
00:09
So let's first set up the diagrams.
00:11
So let's get some inclined plane here.
00:15
We got some angle theta here.
00:18
That's 31.
00:21
Now that there's a body of mass m1 here, which is 3 .7.
00:34
That's a second.
00:37
It's 3 .7 kg.
00:39
Right and then we have another one this way so there's a system of connected bodies okay so this is m2 and that has a value of 8 .8 g so that's just like like a pulley here let's see what else we got so you have everything we need and we give it the coefficient of friction between m1 and the plane to be a little now we need to find the acceleration of the system.
01:33
So you realize that because the, see this mass here, it's pretty heavier than this, right? it's means that our acceleration is going to go that way.
01:46
So now let's look at some, you know, other forces acting.
01:51
So there's a different tension here, t.
01:54
There's another tension here t and those t's are the same.
01:58
So now we're going to consider these bodies individually.
02:03
Let's first focus on the forces acting on this.
02:06
Down the plane.
02:09
So it has to wait down here which is m1 or let's say mg sataeta.
02:15
So because the acceleration is that way and the tension is greater so they have tension minus and g.
02:24
Saim theta and there's one more right there is friction and use a different color here.
02:31
There's also friction which is going to be in the opposite direction so that's just going to be minus f so they have friction there equals mn.
02:42
So we are using f equals ma muting second law...