WEBVTT

00:06.610 --> 00:11.380
So to the speed of this balloon What do you do.

00:11.380 --> 00:14.750
He has to first consider the right angle triangle.

00:15.430 --> 00:16.820
OK.

00:16.870 --> 00:25.360
Yes the mayor does angle and does distance his distance from the balloon horizontal distance by the

00:25.360 --> 00:33.520
distance along the ground from which he can represent this skeptically and after knowing this distance

00:33.790 --> 00:41.570
and this angle the height of the balloon as you're under his or in a light can be calculated similarly.

00:42.610 --> 00:49.900
He's going to draw another triangle like this father find the position of the balloon and after measuring

00:49.900 --> 00:55.690
this angle he he can calculate the final height of the balloon.

00:56.040 --> 00:56.720
OK.

00:57.310 --> 01:06.170
So as two minus one will be the distance traveled in time t the balloon was initially here and its final

01:06.200 --> 01:07.320
position is here.

01:07.550 --> 01:08.100
OK.

01:08.450 --> 01:14.260
So the difference of these two heights is going to represent the distance powered by the balloon.

01:14.450 --> 01:22.550
And we say that it takes time t to travel from this high to this height.

01:23.240 --> 01:24.250
OK.

01:24.260 --> 01:30.210
Then in this case the speed of the balloon would be called as to minus H-1 up on.

01:30.410 --> 01:36.110
So there's how there's a way to calculate the speed of the balloon.

01:36.540 --> 01:47.210
OK students we have seen Andreev how to know that we have this little vinery in order to solve some

01:47.210 --> 01:48.640
practical problems.

01:49.020 --> 01:56.580
OK now we're going to consider In short some uses of trigonometry.

01:56.700 --> 02:02.620
It is widely used in all branches of mathematics astronomy physics etc..

02:02.790 --> 02:12.190
So to go metric is an essential part of mathematics and it is widely used in math and other science

02:12.720 --> 02:15.660
branches where calculation is required.

02:15.760 --> 02:20.620
It would be correct to say that those students who are going to know metry make it difficult to solve

02:20.620 --> 02:22.770
problems and CDO classes.

02:22.950 --> 02:23.470
OK.

02:23.560 --> 02:26.620
So keep in mind it is a very important topic.

02:26.680 --> 02:34.210
Next the most important devices used in defense department an airport such as radar use is the concept

02:34.210 --> 02:43.090
of dignity and calculation to calculate the speed of planes missiles or any other moving object.

02:43.430 --> 02:49.080
OK so the modern day also cannot neglect the use of TNM entry.

02:49.200 --> 02:50.570
OK.

02:51.200 --> 02:57.640
In the next video we shall start with the topic techno metrical ratios.
