00:01
So in this question we have given a marble, marble which is attached to a string, marble which is attached to a string and it is swung in the clockwise horizontal circle, horizontal in the clockwise direction as per the problem.
00:20
So let us suppose this is the circle and this is the center of that circle, okay, and a marble is at this position, it is moving in the clockwise direction along this direction.
00:32
This is the velocity of the stone.
00:35
And this is the radius vector.
00:38
Now as per the problem, the velocity vector it is increasing as we can say that from the problem that marble is speeding up, speeding up.
00:50
So hence we can say here that there is a tangential acceleration.
00:54
The radial acceleration is in this direction due to the centrifugal force, okay? and if the velocity is being increases, then this will have a tangential acceleration in this direction.
01:08
So hence we can say here that it has two net acceleration...