Problem set 3 » (8) river swimming a swimmer heads directly across a river, swimming at her maximum speed of 1.30 m/s relative to the water. she arrives at a point 48.0 m downstream from the point directly across the river, 64.0 m wide. what is the speed of the river current?

Velocity of swimmer across river = 1.30 m/s

Distance arrived downstream = 48 m

Width of river = 64 m

Time taken to cross river =

                                          =

Speed of river current =

                                     =

So, the river is flowing at a speed 0.975 m/s.

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