Question

08.
A man can swim in still water at a speed of 3km/
h. He wants to cross a river that flows at 2km/h
and reach the point directly opposite to his
starting point. (a) In which direction should he
try to swim (that is, find the angle his body
makes with the river flow) ? (b) How much time
will he take to cross the river is 500m wide ?​

Answer 1

Answer:

resultant velocity is root 5.

direction sin^-1 (2/3)

time 10 minute