A man can swim in still water at a speed of 3km/hr.He wants to cross the river that flows at 2km/hr and reach the point directly opposite to his starting Point.find the angle if his body makes with the river flow.

Answer 1

Vsw = Vs + Vw = 3 + 2i, Q1.

Tan A = 2/3 = 0.66667.
A = 33.7o E. of N.

Body angle = 33.7o W. of N.

Answer 2

41.8
3sin@=2