Question

A swimmer heads directly across a river swimming at 1.6 m/s relative to still water. She arrives at a point 40 m downstream from the point directly across the river, which is 80 m wide. Determin the speed of the current

Answer 1

Answer:

Time taken to cross the river t=

1.65

180

=109 s

Velocity of river V

R

=0.85 m/s

Drift x=V

R

×t=0.85×109=92.7 m...