A boat moves with a speed of 5 𝑘𝑚/ℎ relative to water in a river flowing with a speed of 3 𝑘𝑚/ℎ and having a width of 1 𝑘𝑚. The minimum time taken around a round trip is

April 15, 2022

by Ezee_Notes

with no comment

Physics Problems

Question : A boat moves with a speed of 5 𝑘𝑚/ℎ relative to water in a river flowing with a speed of 3 𝑘𝑚/ℎ and having a width of 1 𝑘𝑚. The minimum time taken around a round trip is

(A) 5 min

(B) 60 min

(D) 30 min

Answer : option (D)

Solution :

A boat moves with a speed of 5 𝑘𝑚/ℎ relative to water in a river flowing with a speed of 3 𝑘𝑚/ℎ and having a width of 1 𝑘𝑚. The minimum time taken around a round trip is