A swimmer's velocity in the direction of flow of river is 16km/h and against is 8km/h . Calculate the swimmeeer's velocity in still water and velocity of flow of river?
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Velocity of swimmer is 4 km/hr and velocity of river is 12km/hr.
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Answer:
The velocity of the swimmer in still water is 4km/hour and that of the river is 12km/hour.
Explanation:
Upstream velocity of the swimmer( against the river current) = 16km/hour
Downstream velocity of the swimmer( in the direction of river current) = 8km/hour
Hence, to find out the velocity of swimmer (V) in still water we use the formula:
V= (Downstream speed- Upstream speed)/2
So V= (16-8)/2 = 8/2 = 4 km/hour
Now, velocity of river= (Downstream speed + Upstream speed)/ 2 =( 16+8)/2 = 12km/hour.
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