Aswimmer heads directly across a river, swimming at 1.00 m/s relative to still water. he arrives at a point 41.0 m downstream from the point directly across the river, which is 73.0 m wide. what is the speed of the river current?

velocity of the river is equal to 0.56 m/s

Explanation:

given,

velocity of swimmer w.r.t still water = 1 m/s

width of river = 73 m

he arrives to the point = 41 m

 t = 73 s                        

                    =                      

                    = 0.56 m/s                        

velocity of the river is equal to 0.56 m/s

b. a lightning bug, plug of grass, and a worm