00:01
In this tuition we have given a 25 kilogram box that is sliding down a frictionless incline.
00:06
Then first we have to find the magnitude of the acceleration of the box down the ramp.
00:11
This is the incline ramp and there is a box here.
00:19
At this instant we can say that this angle is theta and the mass is m so weight is acting downward that is mg.
00:32
If we draw the perpendicular to this plane so this angle is also theta.
00:36
So the component of weight in this direction is mg cost theta and along the plane it is mg sine theta and the normal force exerted by the ramp will be in this direction that is n.
00:52
Now let the acceleration is a which is in this direction.
00:57
We have mass is 25 kilogram.
01:02
This angle theta is 20 degree.
01:06
So according to the newton's second law we know that never, force along x direction that is equal to mass into acceleration in x direction.
01:16
This is our x direction and this is y direction...