A swimmer wants to cross a river from point A to point B. Line A B makes an angle of 30° with the flow of river. Magnitude of velocity of the swimmer is same as that of the river. The angle θ with the line A B should be °, so that the swimmer reaches point B.

Question

A swimmer wants to cross a river from point A to point B. Line A B makes an angle of 30° with the flow of river. Magnitude of velocity of the swimmer is same as that of the river. The angle θ with the line A B should be °, so that the swimmer reaches point B. (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/6949457c2893b5ea677977b86d95e422-.png" /> Both velocity vectors are of same magnitude therefore resultant would pass exactly midway through them θ=30°

Q. A swimmer wants to cross a river from point A to point B. Line AB makes an angle of 30∘ with the flow of river. Magnitude of velocity of the swimmer is same as that of the river. The angle θ with the line AB should be ___∘, so that the swimmer reaches point B.

Both velocity vectors are of same magnitude therefore resultant would pass exactly midway through them θ=30∘

Both velocity vectors are of same magnitude therefore resultant would pass exactly midway through them
$θ = 3 0^{\circ}$