A ship A is moving westwards with a speed of 
and a ship 
south of A,
is moving northwards with a speed of 
. The time after which the distance between them becomes shortest is
A
0 h
B
5 h
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
It is clear from the diagram that the shortest distance between the ship A and B is PQ.
Here, 
Also, 
.
So, time taken for them to reach shortest path is
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