Question

57. A man is crossing a river flowing with velocity of 5
m/s. He reaches a point directly across at a distance
of 60 m in 5 sec. His velocity in still water should be
(A) 12 m/s (B) 13 m/s (C) 5 m/s (D) 10 m/s
Sol.​

Answer 1

Hey mate here is ur answer

❤❤

Explanation:

His velocity in x direction should counter the flow so as to reach the point across, i.e. vx=5 m/s

Velocity in y should be such that he reaches 60 m in 5 second, i.e. vy=12 m/s

Thus total velocity, v = root (vx2 + vy2) = 13 m/s

Hope this helps

Plz mark it as BRAINLIEST!!

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