00:01
Here in this question it is given as an ice dancer with her arms stretched out.
00:05
So there are two cases here.
00:08
One is one is ice dancer is spinning with arm stretched.
00:16
One is arms stretch and another case is the she pulls her she pulls in her arms.
00:25
So arms are not stretched.
00:30
They are closed.
00:33
So here we have got the data for the.
00:36
Two cases.
00:37
One in which the arms are stretched and an ice dancer is spinning and another case is arms are not stretched and and the ice dancer is spinning.
00:48
So the data is so angular velocity is given as omega 1 which is 1 radian per second and also we have got the moment of inertia with our arm stretch which is the i1 denoted by i1 which is 2 .48 kg and meter square.
01:08
Then what is it is asking is that what is her angular velocity when she pulls her in arms to make the moment of inertia 1 .4 kg per meter square.
01:17
So we need to calculate the angular velocity here and we have got the value of moment of inertia as 1 .4 kg per meter square.
01:28
Sorry kg meter square...