Question 153: Motion in 2D & Vectors

Question

A swimmer wants to cross a river from point A to point B. Line AB makes an angle of 30$$^\circ$$ with the flow of river. Magnitude of velocity of the swimmer is same as that of the river. The angle $$	heta$$ with the line AB should be _________$$^\circ$$, so that the swimmer reaches point B.

Accepted Answer

Both velocity vectors are of same magnitude therefore resultant would pass exactly midway through them
$$	heta$$ = 30$$^\circ$$

Motion in 2D & Vectors

A swimmer wants to cross a river from point A to point B. Line AB makes an angle of 30$^\circ with the flow of river. Magnitude of velocity of the swimmer is same as that of the river. The angle \theta with the line AB should be _________^\circ$, so that the swimmer reaches point B.

Choose the correct answer: