Question

A swimmer is capable of swimming at 165 ms in still water. If she swims directly
across a 180 m wide river whose current is 0.85 m/s, how far downstream (from a point opposite her
starting point) will she land? (ii) How long will it take her to reach the other side?
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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