A man wants to reach point 𝐵 on the opposite bank of a river flowing at a speed as shown in figure. What minimum speed relative to water should the man have so that he can reach point 𝐵? In which direction should be swim?

April 10, 2022

by Ezee_Notes

with no comment

Physics Problems

Question : A man wants to reach point 𝐵 on the opposite bank of a river flowing at a speed as shown in figure. What minimum speed relative to water should the man have so that he can reach point 𝐵? In which direction should be swim?

(A) 𝑢√2

(B) 𝑢/√2

(D) 𝑢/2

Answer : option (C)

Solution :

A man wants to reach point 𝐵 on the opposite bank of a river flowing at a speed as shown in figure. What minimum speed relative to water should the man have so that he can reach point 𝐵? In which direction should be swim?