00:01
Again, now in this form, a sky is sliding down a 15 degree slope.
00:05
Friction is not negligible, we need to identify the forces on the sky.
00:10
Now, let me say that this is a ramp that we have, where a sky is what scheme.
00:18
This one is looked like this.
00:19
There i have a sky.
00:23
This one is looked like this.
00:28
Now, this angle is what 15 degree.
00:30
Let me say this angle is theta.
00:33
Now it is what sliding down.
00:35
So, there is a mg which is acting downward...