Question

5 ms
21. A river is flowing from west to east with a speed 5 ms. A swimmer can
swim in still water at a speed of 10 ms
s'. If he wants to start from point A on
south bank and reach opposite point B on north bank, in what direction
should he swim
1) 30° east of north
2) 60° east of north
3) 30° west of north
4) 60° west of north​

Answer 1

1)left

2)right

3)left

4) right