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| PAGE: 526 | SET: Exercises | PROBLEM: 46 |
Draw the related diagram :
The constant speed of the aircraft is 
.
The time taken by aircraft is 
.
From the figure :
and 
.
.
The Law of Sines: 
.
Usind sine law: 
Consider 
.
Substitute and 
and 
.
.
The sum of angles in triangle is 
.
Sustitute 
and 
.
.
Consider 
.
Substittue and 
and .
Hence original time taken by aircraft is 
.
.
Hence, the time lost due to the error is 
.
Therefore, the time lost due to the error is 
.
The time lost due to the error is 
.
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