A ship 
is moving Westwards with a speed of 10 km 
and a ship 
km South of 
, is moving Northwards with a speed of 10 km 
The time after which the distance between them becomes shortest, is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Given situation is shown in the figure.
Velocity of ship 
km 
towards west Velocity of ship 
km 
towards north 
km
shortest distance
Relative velocity between 
and 
is
km 
km
The time after which distance between them equals to 
is given by
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