00:01
As per the question, it is given to us that a ball is thrown.
00:05
Suppose this is the ball and this is the cliff, right? so it is given this height of the cliff is h.
00:17
Suppose it is thrown from here, right? so we can draw the diagram like this.
00:22
It is thrown till here.
00:24
So it is thrown with the velocity u, okay? okay, so we can say initial velocity and the angle of horizontal is 60 degree.
00:36
So we can resolve the components, vertical component and horizontal component, right? so it will be, if we will say this velocity as v, so that means it will be v cos 60 degree and this will be v sin 60 degree.
00:53
These two are the components, right? so we can write here that initial speed given to us which is equal to 29 meter per second.
01:07
And angle with the horizontal that is theta is given to us 60 degree.
01:13
What else is given that ball will hit cliff.
01:17
Hit cliff after how many seconds? after time t which is equal to 3 .6 seconds.
01:28
Now we have to find this edge height.
01:31
So vertical height is there.
01:33
So we will apply vertical component of the velocity.
01:38
So firstly we will find vertical component of velocity.
01:42
Right.
01:42
So what is the vertical component of velocity if you see.
01:46
This is sine 1...