Question
Question: A river is flowing from W to E with a speed 5m/min. A man can swim in still waters at a velocity 10 ...
A river is flowing from W to E with a speed 5m/min. A man can swim in still waters at a velocity 10 m/min. In which direction should a man swim to take the shortest path to reach the south bank?
A
300 East of South
B
600 East of North
C
South
D
300 West of North
Answer
300 West of North
Explanation
Solution
vs sin θ = vriver
Sin θ = 1/2 θ = 30o
