00:03
So here we have a girl, right? so suppose this is a girl right here and this girl.
00:08
And you also have a slate, a slate that is somewhere here.
00:11
Suppose this is a slate, right? and there's this a rope between them, right? and the girl weighs 40 kilograms and the slate weighs 8 .4 kilograms.
00:23
So down the friction as a frozen lake, right? so you can connect the friction.
00:29
So they are 15 meter apart.
00:31
Okay.
00:31
And then the goal exerts a horizontal force, right? so the goal exerts a horizontal force on this rope and the rope, of course, is going to pull at this slate, but at the same time, pour the goal as well.
00:44
So first, what is the acceleration and to do the slate, right? so the acceleration, i'm going to put a, and that's what's given by the force, which is actually 5 .2, right? and over the mass, which is 8 .4, right? so you found this to be given by 5 .5.
01:01
Divided by 8 .4, that actually gives us 0 .62, right? 6 .62 meters per second squared...