Question

9. A man can swim with speed 5 m/s. He wants to cross a 100 m wide river flowing at 3 mis to reach the point directly opposite to his starting point in which direction he should try to swim? (1) 143° with flow of river (2) 153 with flow of river (3) 90° with flow of river (4) 127° with flow of river​

Answer 1

Answer:

4.) 127° with flow of river

Here Is ur answer

Hope this will help you

Answer 2

Answer:

127 degree with the flow of water

Explanation:

velocity of river  = velocity of swimmer * sin theeta

3=5 sin theeta
sin theeta=3/5

theeta =37 degree

the angle he should jump =90+37

                                           =127 degree