Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A swimmer can swim at a speed of 
in still water. He wants to cross a river 1 km wide that flows at a constant speed of 
. The swimmer swims at a constant angle with respect to the river flow to ensure he travels along the shortest path What is the time taken by the swimmer to cross the river?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Speed of swimmer in still water
Width of the river 
Speed of river flow 
Time 
Distance 
Effective velocity ( 
)
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