00:01
Hi, there is a question we say that an airplane begins its descent with an average speed of 240 miles per hour.
00:12
Okay.
00:14
How much altitude will the plane lose in four millimeter in four minutes, around to the nearest strength of a mile angle of depression at an angle of depression of four degrees.
00:32
So if we have this aeroplane, so it will be descending like this and this is the angle.
00:43
So let us say i need to find this value of h and 240 miles per hour is this.
00:54
That means this length is going to be equal to 240.
01:01
This is a 240 miles in one hour.
01:03
So in four minute, it will be equal to, and remember this is four degrees, not 40 degrees, four degrees, 20 and the four minute is four by 60 hours, 16 miles...