00:04
So the block falls down and gives up an in -tron.
00:10
The length of the incline is in mean.
00:14
We'll just say it's l.
00:21
In -line, l.
00:24
The angle is given as 30.
00:30
The height here is given as 2.
00:33
So potential use of the falling stone is now gravity times height.
00:40
It is 10 times 1 .8 times 2.
00:44
Potential energy is 196 strokes now for the ball on this surface its weight is going to be mg and the particular component this is mg for sticker being equal to the anuar reaction from the surface time it is because fission is given as new i and our is 0 .25.
01:31
So i was going to be ng cost two directions.
01:34
10 times 1 .8 times as 20.
01:39
So the operation on the surface is 84 .9 meters.
01:47
You also need to know the vertical height, each rather than they got rid of one down against gravity.
01:55
In other words, the professional energy of 196 zoles is going to be worked against gravity.
02:04
But it is the height is the height they'll be worked against friction...