Question

a river is flowing west to east at a speed of 5 m/ minutes .in what direction should a man on the south bank of the river capable of swimming of 10 m / minutes in still water should swim to cross the river 1. in short time 2.along short path

Answer 1

how wide is the river?

Answer 2

Vsw = Vs + Vw = 10 + 5i, Q1.

Tan A = Vw/Vs = 5/10 = 0.500
A = 26.6o E. of N.

Direction = 26.6o W. of N.